Move bulk of the code to cxx to not expose extra headers

[shahor02]

No description provided.

[github-actions]

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[alibuild]

Error while checking build/O2/fullCI_slc9 for b4fb4e9 at 2025-06-23 22:12:

## sw/BUILD/O2Physics-latest/log
collect2: error: ld returned 1 exit status
ninja: build stopped: subcommand failed.


## sw/BUILD/o2checkcode-latest/log
--
========== List of errors found ==========
++ GRERR=0
++ grep -v clang-diagnostic-error error-log.txt
++ grep ' error:'
++ GRERR=1
++ [[ 1 == 0 ]]
++ mkdir -p /sw/INSTALLROOT/13b39f750deca26d253770c3af0b5c37606a6997/slc9_x86-64/o2checkcode/1.0-local30/etc/modulefiles
++ cat
--

Full log here.

[shahor02]

@vkucera CI fails since the O2Physics assumes that the TimeDeadMap is header only, hence AliceO2Group/O2Physics#11742

[alibuild]

Error while checking build/O2/fullCI_slc9 for 8357275 at 2025-06-24 08:07:

## sw/BUILD/O2Physics-latest/log
collect2: error: ld returned 1 exit status
ninja: build stopped: subcommand failed.

Full log here.

[shahor02]

@vkucera now you can remove NoiseMap header from the O2Physics.

[vkucera]

@vkucera now you can remove NoiseMap header from the O2Physics.

Thanks @shahor02