Publish all castable data types to pal_statistics (backport #2633)

[mergify]

Handle types not being double are just not published now.

I tried to make cast_to_double() reusable, I did not find a better place to add it.

---

This is an automatic backport of pull request #2633 done by Mergify.

[mergify]

Cherry-pick of fd12e90 has failed:

On branch mergify/bp/jazzy/pr-2633
Your branch is up to date with 'origin/jazzy'.

You are currently cherry-picking commit fd12e90.
  (fix conflicts and run "git cherry-pick --continue")
  (use "git cherry-pick --skip" to skip this patch)
  (use "git cherry-pick --abort" to cancel the cherry-pick operation)

Changes to be committed:
	modified:   hardware_interface/test/test_handle.cpp
	modified:   hardware_interface_testing/test/test_components/test_actuator.cpp

Unmerged paths:
  (use "git add <file>..." to mark resolution)
	both modified:   hardware_interface/include/hardware_interface/handle.hpp
	both modified:   hardware_interface/include/hardware_interface/hardware_info.hpp

To fix up this pull request, you can check it out locally. See documentation: https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/reviewing-changes-in-pull-requests/checking-out-pull-requests-locally

[codecov]

Codecov Report

❌ Patch coverage is 91.83673% with 4 lines in your changes missing coverage. Please review.
✅ Project coverage is 89.35%. Comparing base (1f75c84) to head (e3d8f86).
⚠️ Report is 1 commits behind head on jazzy.

Files with missing lines	Patch %	Lines
...re_interface/include/hardware_interface/handle.hpp	73.33%	2 Missing and 2 partials ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##            jazzy    #2855      +/-   ##
==========================================
+ Coverage   89.32%   89.35%   +0.02%     
==========================================
  Files         152      152              
  Lines       17892    17938      +46     
  Branches     1457     1459       +2     
==========================================
+ Hits        15982    16028      +46     
  Misses       1335     1335              
  Partials      575      575              

Flag	Coverage Δ
unittests	89.35% <91.83%> (+0.02%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files with missing lines	Coverage Δ
...rface/include/hardware_interface/hardware_info.hpp	92.85% <100.00%> (+12.08%)	⬆️
hardware_interface/test/test_handle.cpp	98.65% <100.00%> (+0.17%)	⬆️
...ace_testing/test/test_components/test_actuator.cpp	88.73% <100.00%> (ø)
...re_interface/include/hardware_interface/handle.hpp	89.51% <73.33%> (-0.58%)	⬇️

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