* updating version numbers
* no need for meson options now that we are building both compiled and header only together and providing them as options
* no need for header only ci tasks, each ci task now builds and tests two different targets, regular pystring and pystring_header_only
* no need for header only ci tasks, each ci task now builds and tests two different targets, regular pystring and pystring_header_only
* updated meson and cmake build systems to have two available targets for the user to pick from compiled and header only
* adding cmake configuration file
* removing empty ci target
* adding bit in pystringConfig to prevent double definition error
* adding newline in file end for consistency