Split build jobs by architecture and OS in GitHub Actions workflows, add Docker and docs build jobs, and update artifact upload to create GitHub releases. Also update CPackConfig.cmake to use BUILD_VERSION for package versioning.
Moved currency_config.h and related CMake/config files to a new src/config directory, creating a dedicated config CMake target. Updated all includes and build scripts to reference the new config location. Removed obsolete cmake/ChainConfig.cmake and example currency config, and restructured genesis generator and premine wallet logic into the new config system for improved modularity and maintainability.
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.
