Pygitgrab

-

- refactored package structure
- added entry point `pygitgrab`
- added global `.pygg_credits` file, from here credits are loaded if `-c` is not specified.
- use `--anonymus` flag to disable the default loading
- fixed typo in cmd-line parameter "anonymous"
-

- added inspect methods
- `-irepo` shows the repo meta
- `-itags` list the repos tags
- `-idir` list the directory content of a repo (path)
-

- fix login credits for downloading remote pygg file

- added -url cmd parameter for remote github pygg file support
- pep08 black code style
- smaller code fixes
-

added -credits file cmd parameter