Initial code for execution info

[sydhds]

• document all added functions
• try in sandbox /simulation/labnet
  • if part of node-launch, checked using the resync_check flag
• unit tests on the added/changed features
  • make tests compile
  • make tests pass
• add logs allowing easy debugging in case the changes caused problems
• if the API has changed, update the API specification

[sydhds]

ExecuteInfoForSlot has more fields than ExecutionOutput so it makes sense to have both structures as it is defined in this PR. Let me know if this is still an issue @AurelienFT ?

[codecov]

Codecov Report

Attention: Patch coverage is 72.86822% with 35 lines in your changes are missing coverage. Please review.

Project coverage is 71.78%. Comparing base (8b23f0a) to head (ef7b13a).
Report is 4 commits behind head on main.

Files	Patch %	Lines
massa-execution-worker/src/execution.rs	76.54%	19 Missing ⚠️
massa-execution-worker/src/context.rs	78.94%	8 Missing ⚠️
...ssa-execution-worker/src/speculative_roll_state.rs	0.00%	6 Missing ⚠️
massa-execution-exports/src/channels.rs	0.00%	1 Missing ⚠️
massa-execution-exports/src/types.rs	50.00%	1 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #4685   +/-   ##
=======================================
  Coverage   71.78%   71.78%           
=======================================
  Files         291      291           
  Lines       51642    51642           
=======================================
  Hits        37069    37069           
  Misses      14573    14573           

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