InstData Import: command to generate tsv file to reimport
InstData: mv generate source files tsv to base command dir; remove most references to source files
InstData: add reimport helper class; use it in generate file for reimport
InstData: fix reimport class name; add reimported_from method
InstData: rename headers var in generate file for reimport
InstData Import: mv HMP commands to Site/TGI/Hmp