feat: make event types be strongly defined and other changes

[Julusian]

• What kind of change does this PR introduce? (Bug fix, feature, docs update, ...)

feature

• What is the current behavior? (You can also link to an open issue here)

the events emitted by this library are not documented in the typescript typings.

• What is the new behavior (if this is a feature change)?

This makes them be typed.

There are some other changes here too, which were needed while using the library, maybe they should be submitted separetely;

• remove SlotId enum as all the newer models support more than 2 slots.

• Add inputVideoFormat parameter from transport info

• Add missing video formats

• fix 508 response codes use 'active slot' instead of 'slotId' #12

• Other information:

[codecov-commenter]

Codecov Report

Attention: 14 lines in your changes are missing coverage. Please review.

Comparison is base (fb7a34b) 52.34% compared to head (07905d7) 51.79%.

Additional details and impacted files

@@            Coverage Diff             @@
##           master      #25      +/-   ##
==========================================
- Coverage   52.34%   51.79%   -0.56%     
==========================================
  Files          37       37              
  Lines         852      863      +11     
  Branches      140      146       +6     
==========================================
+ Hits          446      447       +1     
- Misses        355      363       +8     
- Partials       51       53       +2     

Files	Coverage Δ
src/asyncHandlers/configuration.ts	36.36% <100.00%> (ø)
src/asyncHandlers/displayTimecode.ts	57.14% <100.00%> (ø)
src/asyncHandlers/remoteInfo.ts	62.50% <100.00%> (ø)
src/asyncHandlers/slotInfo.ts	100.00% <100.00%> (ø)
src/asyncHandlers/timelinePosition.ts	57.14% <100.00%> (ø)
src/commands/clips.ts	13.63% <ø> (ø)
src/commands/deviceInfo.ts	30.00% <ø> (ø)
src/commands/diskList.ts	13.33% <ø> (ø)
src/commands/slotInfo.ts	21.42% <ø> (ø)
src/commands/slotSelect.ts	17.64% <0.00%> (ø)
... and 5 more

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