Fixes #614
This PR does not include tests. I created it to determine if the repo will allow regex for --remap and --with-attributes. regex support is opt-in using a separate --remap-regex and --with-attributes-regex , --remap-regex supports string formatting. These are some examples

--remap-regex
^([\w\d]+)Flags([0-9])$={0}Flags{1}
^([\w\d]+)FlagBits$=@{0}Flags

--with-attribute-regex
^Vk[\w\d]+Flags$=Flags
^Vk[\w\d]+Flags[0-9]$=Flags

if allowed I will start working on tests and this can also be added to --with-type as --with-type-regex