Reorganized the con4m src and include directories to make them more sane (haven't gone IWYU though, just more sane on the file system)
Retool the build process; the dev command now lets you switch profiles with 'dev profile' and passes any additional config options to meson. There are now MORE config options, including 'show_preprocessor_config' which dumps emits compiler warnings with the values of preproc config info.
Fix the issue w/ CON4M_ROOT being necessary to run tests.
src
andinclude
directories to make them more sane (haven't gone IWYU though, just more sane on the file system)