Adding uninstall target and proper handling of pcm files

[juanangp]

Uninstall target has been added to cmake, following https://gitlab.kitware.com/cmake/community/-/wikis/FAQ#can-i-do-make-uninstall-with-cmake, to clean up install directories make uninstall can be used.

Moreover, different features have been added:

• Removal of installation files before install using install_manifest, same as make uninstall instead of removing entire install folder
• Proper handling of PCM files, which now are added to install_manifest, therefore can be clean up properly

Files left in the install directory after doing make uninstall: rest-config, thisREST.sh and thisREST.csh

Closes #395

[jgalan]

Perhaps ROOT pcm are being removed also?

Info in <TCling::LoadPCM>: In-memory ROOT PCM candidate /usr/local/root/install/lib/root/libGviz3d_rdict.pcm
[8321](https://github.com/rest-for-physics/framework/actions/runs/4762628438/jobs/8465184460?pr=397#step:8:8322)

[8322](https://github.com/rest-for-physics/framework/actions/runs/4762628438/jobs/8465184460?pr=397#step:8:8323)
Info in <TCling::LoadPCM>: In-memory ROOT PCM candidate /usr/local/root/install/lib/root/libHistFactory_rdict.pcm
[8323](https://github.com/rest-for-physics/framework/actions/runs/4762628438/jobs/8465184460?pr=397#step:8:8324)

[8324](https://github.com/rest-for-physics/framework/actions/runs/4762628438/jobs/8465184460?pr=397#step:8:8325)
Info in <TCling::LoadPCM>: In-memory ROOT PCM candidate /usr/local/root/install/lib/root/libHistPainter_rdict.pcm
[8325](https://github.com/rest-for-physics/framework/actions/runs/4762628438/jobs/8465184460?pr=397#step:8:8326)

[juanangp]

Perhaps ROOT pcm are being removed also?

I removed by mistake some file permissions, now should be fine.

[juanangp]

I removed by mistake some file permissions, now should be fine.

It seems that this was not the issue, this is annoying because I cannot reproduce the problem in sultan. The pcm files that are removed are generated inside the build directory. But here we just do make install and there is not install_manifest.txt so nothing should be deleted...