[Feature] CMake Building and Packaging

[MJC598]

This PR focuses on simplifying and streamlining the CMake/CPack building. The overall structure now follows the following key ideas:

1. The "project/repo" is called "respond" and made up of 2 output targets: respond_model and respond_tests
2. The CMake stipulates we use C++20
3. The Version is controlled via the version.hpp file contained in include/respond/ and the minor version was bumped
4. CMake Options for building the targets are controlled in options.cmake and CPack Options for packaging the targets are controlled in respondCPackOptions.cmake.in as a template
5. The library itself is called respond_model and aliased to use the respond::respond_model namespace in CMake
6. The public headers are now added as a FILE_SET
7. Private dependencies are now controlled through a list and then correspondingly linked via target_link_libraries
8. Paths were corrected for installs so that everything is now installed to ${CMAKE_INSTALL_PREFIX}/${CMAKE_INSTALL_LIBDIR}/ and then cmake files are installed to cmake/respond where the library is installed to respond and the headers are installed to include
9. A basic package version file is created from the version and packaged with the cmake files
10. The respondCPackOptions.cmake.in template builds RPM and Debian details. This will need to be extended for Windows and Mac
11. CMakePresets.json saw a new generator added to the packaging flow (debian)

[ddbaptiste]

Requesting a fix for the text cut off in the README.