Shellcheck fixes.
Move most of patches to community-patches from tkg.
Switch from getopt to getopts to allow using parameters in any order.
Add "-r" option.
Misc style fixes.
Improve tkg configs.
Add elif for 12.04.
libcloog-ppl1 is not available in 20.04.
Use "--depth=1" to speed up clone.
Add files and dirs to .gitignore file.
Shellcheck fixes. Move most of patches to community-patches from tkg. Switch from getopt to getopts to allow using parameters in any order. Add "-r" option. Misc style fixes. Improve tkg configs. Add elif for 12.04. libcloog-ppl1 is not available in 20.04. Use "--depth=1" to speed up clone. Add files and dirs to .gitignore file.