Add trigger information to SideEffect

[jchapuis]

This allows for differentiated side-effects depending on the case (after recovery, persistence or read-only interaction)

[codecov]

Codecov Report

Merging #293 (5b8e3db) into master (f9f41be) will decrease coverage by 0.15%.
Report is 6 commits behind head on master.
The diff coverage is 91.42%.

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #293      +/-   ##
==========================================
- Coverage   89.90%   89.76%   -0.15%     
==========================================
  Files          72       73       +1     
  Lines         872      879       +7     
  Branches       98      116      +18     
==========================================
+ Hits          784      789       +5     
- Misses         88       90       +2     

Files	Coverage Δ
...oy/internal/DurableShardedRepositoryDeployer.scala	92.10% <100.00%> (+0.21%)	⬆️
...ternal/EventSourcedShardedRepositoryDeployer.scala	84.44% <100.00%> (+0.35%)	⬆️
.../main/scala/endless/example/app/akka/AkkaApp.scala	100.00% <100.00%> (ø)
...ain/scala/endless/example/app/pekko/PekkoApp.scala	100.00% <100.00%> (ø)
.../endless/example/logic/BookingEntityBehavior.scala	90.90% <ø> (ø)
...cala/endless/example/logic/BookingSideEffect.scala	91.66% <ø> (ø)
.../endless/example/logic/VehicleEntityBehavior.scala	100.00% <ø> (ø)
...cala/endless/example/logic/VehicleSideEffect.scala	100.00% <100.00%> (ø)
...deploy/internal/DurableShardedEntityDeployer.scala	92.10% <100.00%> (+0.21%)	⬆️
...y/internal/EventSourcedShardedEntityDeployer.scala	84.78% <100.00%> (+0.69%)	⬆️
... and 2 more