Improve the 32bit experience when installing the 64bit agent.

[jaffinito]

Description

• Adds an action that will look for an existing install of the agent, capture its bitness and compare it to the installer's bitness. IF they are different the installer throws an error message and forces an exit.
• The 64 bit installer now sets the COR_PROFILER_PATH_32 and CORECLR_PROFILER_PATH_32 env vars in the registry for WAS and W3SVC pointing to the already installed 32bit profiler. This will allow 32bit apps to get instrumented.

Author Checklist

• Unit tests, Integration tests, and Unbounded tests completed
• Performance testing completed with satisfactory results (if required)

Reviewer Checklist

• Perform code review
• Pull request was adequately tested (new/existing tests, performance tests)

[codecov-commenter]

Codecov Report

Merging #1890 (e8087c5) into main (737b4f1) will increase coverage by 0.00%.
Report is 1 commits behind head on main.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             main    #1890   +/-   ##
=======================================
  Coverage   83.49%   83.49%           
=======================================
  Files         402      402           
  Lines       24670    24670           
=======================================
+ Hits        20597    20598    +1     
+ Misses       4073     4072    -1     

see 5 files with indirect coverage changes