Add API for reporting status of perform_action

[mxgrey]

This PR accomplishes three purposes:

1. The task event status can now be updated by the action executor
2. The action executor can now create event log entries
3. The perform_action event status will automatically change to Completed when the action executor finishes

[mxgrey]

Related to #170

[codecov]

Codecov Report

Merging #190 (c09cda6) into main (4cf5d18) will decrease coverage by 0.06%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##             main     #190      +/-   ##
==========================================
- Coverage   17.96%   17.89%   -0.07%     
==========================================
  Files         418      836     +418     
  Lines       38204    76492   +38288     
  Branches    18284    36604   +18320     
==========================================
+ Hits         6862    13691    +6829     
- Misses      24018    48146   +24128     
- Partials     7324    14655    +7331     

Flag	Coverage Δ
tests	17.89% <ø> (-0.07%)	⬇️

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Impacted Files	Coverage Δ
.../test/mock_monitor_nodes/missing_query_monitor.cpp
...ter/src/rmf_fleet_adapter/agv/test/MockAdapter.cpp
...-4.1.0/Rx/v2/src/rxcpp/operators/rx-start_with.hpp
...4.1.0/Rx/v2/src/rxcpp/schedulers/rx-sameworker.hpp
...mf_rxcpp/RxCpp-4.1.0/Rx/v2/src/rxcpp/rx-predef.hpp
...adapter/src/rmf_fleet_adapter/phases/DoorClose.hpp
..._traffic_ros2/schedule/internal_convert_vector.hpp
..._traffic_ros2/schedule/convert_Inconsistencies.cpp
...f_ros2/rmf_task_ros2/test/bidding/test_SelfBid.cpp
...apter/src/rmf_fleet_adapter/events/ExecutePlan.cpp
... and 1244 more

[Yadunund]

LGTM!