Add initialize function for moveit_sensor_manager plugin

[JafarAbdi]

Description

Currently, there's no way to pass parameters to the sensor manager when creating it, so I added an initialize function similar to all other MoveIt plugins

Checklist

• Required by CI: Code is auto formatted using clang-format
• Extend the tutorials / documentation reference
• Document API changes relevant to the user in the MIGRATION.md notes
• Create tests, which fail without this PR reference
• Include a screenshot if changing a GUI
• While waiting for someone to review your request, please help review another open pull request to support the maintainers

[codecov]

Codecov Report

Merging #386 (9d83a89) into main (2620f7b) will decrease coverage by 0.01%.
The diff coverage is 33.34%.

❗ Current head 9d83a89 differs from pull request most recent head f00259a. Consider uploading reports for the commit f00259a to get more accurate results

@@            Coverage Diff             @@
##             main     #386      +/-   ##
==========================================
- Coverage   53.37%   53.37%   -0.00%     
==========================================
  Files         210      210              
  Lines       18814    18816       +2     
==========================================
+ Hits        10040    10041       +1     
- Misses       8774     8775       +1     

Impacted Files	Coverage Δ
.../planning/plan_execution/src/plan_with_sensing.cpp	16.48% <33.34%> (-0.39%)	⬇️
...nning_scene_monitor/src/planning_scene_monitor.cpp	56.30% <0.00%> (+0.16%)	⬆️

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