Fix fl2k_file repeat cycle break

Release 0.2.1

CMakeLists: extend cmake_minimum_required range

README.md: Populate it with the usual content

Release 0.2.0

update git URLs (git -> https; gitea)

lib: revert implementing RGB233 mode

lib: fix hang on exit

lib: reuse hint message when zero-copy buffer alloc fails

lib: fixed rgb332 macros

lib: added utility macros for rgb332 mode

lib: implement enabling RGB332 mode

lib: fall back to iface 1 in case iface 0 altsetting 1 fails

lib: use interface 0 altsetting 1 instead of interface 1

set CMake policy CMP0075 if it exists