Allow nested lib location for nvcomp

[KyleFromNVIDIA]

Description

Modify rapids_cpm_nvcomp() to allow CMAKE_INSTALL_LIBDIR and CMAKE_INSTALL_INCLUDEDIR to be nested directories. This is needed to support building wheels that set these variables in order to put their libraries in their own package directory.

Checklist

• [ ] I am familiar with the Contributing Guidelines.
• [ ] New or existing tests cover these changes.
• [ ] The documentation is up to date with these changes.
• [ ] The cmake-format.json is up to date with these changes.
• [ ] I have added new files under rapids-cmake/
  • [ ] I have added include guards (include_guard(GLOBAL))
  • [ ] I have added the associated docs/ rst file and update the api.rst

[KyleFromNVIDIA]

/merge