Changed release build flags in CMakeLists.txt to suppress all warnings with '-w'. Updated CPackConfig.cmake to use 'message(STATUS ...)' for clearer status output and improved consistency. Removed unused COMPONENT argument from documentation install step in DocBuilder.cmake.
Introduces CPack-based packaging with a new CPackConfig.cmake and related configuration variables. Updates Makefile and CMakeLists.txt to support packaging, renames project to Lethean, and adjusts workflow files to use unified 'release' build and artifact upload. Also adds install rules for main binaries and comments out install steps in libmdbx submodules.