add gnome/CMakeLists.txt to source package

fix memory leak (strukturag#493)

increase version to v1.11.0

increase version to v1.10.0

increase version to v1.9.1

increase version to v1.9.0

encoder_fuzzer tests with both HEIF and AVIF

increase version number to v1.7.0

add heix support to README

increase version number to v1.6.1