update 2 new parsers to create less garbage and fix a few corner case bugs (one remains, waiting for CharSeeker to get published to maven so it can be pulled from there)
add doc new_update_stream_file_format_parsers about performance characteristics of new parsers
remove old parsers
integrate new Regex based parser into codebase (CharSeeker still has a small amount of bugs that need fixing before it becomes the default parser)
update parser tests
update sample substitution parameters and update stream files