add has header and add only header if used

[DavidBadura]

Currently StreamStart and Archived header have always been added, which I think is unnecessary. We should only add headers if they also have a value or are "active".

I also added a hasHeader to make the API nicer.

Furthermore, I made the message translators more general for headers.

And last but not least, performance has been improved by around 15-20%.

[github-actions]

Hello 👋

here is the most recent benchmark result:

SubscriptionEngineBench
=======================

+---------------------------+-----------------+-----------------+-----------------+------------+
|                           | time (kde mode)                   | memory                       |
+---------------------------+-----------------+-----------------+-----------------+------------+
| subject                   | Tag: <current>  | Tag: base       | Tag: <current>  | Tag: base  |
+---------------------------+-----------------+-----------------+-----------------+------------+
| benchHandle10000Events () | 3.236s (±0.00%) | 3.293s (±0.00%) | 37.777mb        | 37.783mb   |
+---------------------------+-----------------+-----------------+-----------------+------------+

PersonalDataBench
=================

+----------------------------------------+--------------------+--------------------+-----------------+------------+
|                                        | time (kde mode)                         | memory                       |
+----------------------------------------+--------------------+--------------------+-----------------+------------+
| subject                                | Tag: <current>     | Tag: base          | Tag: <current>  | Tag: base  |
+----------------------------------------+--------------------+--------------------+-----------------+------------+
| benchLoad10000Events ()                | 205.003ms (±0.00%) | 242.664ms (±0.00%) | 39.991mb        | 39.998mb   |
| benchSave1Event ()                     | 1.314ms (±0.00%)   | 1.383ms (±0.00%)   | 39.991mb        | 39.998mb   |
| benchSave10000Events ()                | 438.184ms (±0.00%) | 480.446ms (±0.00%) | 39.994mb        | 40.000mb   |
| benchSave10000Aggregates ()            | 13.349s (±0.00%)   | 13.727s (±0.00%)   | 39.991mb        | 39.998mb   |
| benchSave10000AggregatesTransaction () | 11.679s (±0.00%)   | 11.719s (±0.00%)   | 40.493mb        | 40.499mb   |
+----------------------------------------+--------------------+--------------------+-----------------+------------+

SplitStreamBench
================

+-------------------------+--------------------+--------------------+-----------------+------------+
|                         | time (kde mode)                         | memory                       |
+-------------------------+--------------------+--------------------+-----------------+------------+
| subject                 | Tag: <current>     | Tag: base          | Tag: <current>  | Tag: base  |
+-------------------------+--------------------+--------------------+-----------------+------------+
| benchLoad10000Events () | 5.120ms (±0.00%)   | 5.670ms (±0.00%)   | 40.666mb        | 41.234mb   |
| benchSave10000Events () | 541.246ms (±0.00%) | 586.056ms (±0.00%) | 40.677mb        | 41.246mb   |
+-------------------------+--------------------+--------------------+-----------------+------------+

SimpleSetupBench
================

+----------------------------------------+--------------------+--------------------+-----------------+------------+
|                                        | time (kde mode)                         | memory                       |
+----------------------------------------+--------------------+--------------------+-----------------+------------+
| subject                                | Tag: <current>     | Tag: base          | Tag: <current>  | Tag: base  |
+----------------------------------------+--------------------+--------------------+-----------------+------------+
| benchLoad10000Events ()                | 126.297ms (±0.00%) | 163.171ms (±0.00%) | 37.338mb        | 37.343mb   |
| benchSave1Event ()                     | 867.600μs (±0.00%) | 898.800μs (±0.00%) | 37.338mb        | 37.343mb   |
| benchSave10000Events ()                | 369.182ms (±0.00%) | 409.329ms (±0.00%) | 37.338mb        | 37.344mb   |
| benchSave10000Aggregates ()            | 9.719s (±0.00%)    | 8.996s (±0.00%)    | 37.338mb        | 37.343mb   |
| benchSave10000AggregatesTransaction () | 7.333s (±0.00%)    | 7.495s (±0.00%)    | 37.338mb        | 37.343mb   |
+----------------------------------------+--------------------+--------------------+-----------------+------------+

SnapshotsBench
==============

+----------------------------------------+--------------------+--------------------+-----------------+------------+
|                                        | time (kde mode)                         | memory                       |
+----------------------------------------+--------------------+--------------------+-----------------+------------+
| subject                                | Tag: <current>     | Tag: base          | Tag: <current>  | Tag: base  |
+----------------------------------------+--------------------+--------------------+-----------------+------------+
| benchLoad10000EventsMissingSnapshot () | 128.106ms (±0.00%) | 163.112ms (±0.00%) | 37.356mb        | 37.362mb   |
| benchLoad10000Events ()                | 633.800μs (±0.00%) | 513.100μs (±0.00%) | 37.356mb        | 37.362mb   |
+----------------------------------------+--------------------+--------------------+-----------------+------------+

This comment gets update everytime a new commit comes in!