v27 - General maintenance

General maintenance release

• Fix ugly eopkg filesdb dep bug
• Support glvnd switch
• Use bsdtar when possible as GNU tar is a nightmare with overlayfs
• Support disabling the stripping of .la libtool files with lastrip: no
• Support haswell subdir arch for AVX2 support in glibc
• New ninja_* macros to replace old meson specific macros
• New %cmake_ninja macro to build cmake using Ninja to save on build times
• Fix ruby gem macros
• Fix documentation
• etc