Add bkp - backup utility

[gergelyk]

What is this Python project?

CLI tool. Makes backup copies of your files/directories. Supports TGZ format and annotations.

What's the difference between this Python project and similar ones?

• cp Requires more typing and preferably support of bash, e.g. cp -r /full/path/to/my/file.txt{,.bkp}. Requires support of rm to remove unused files. Doesn't support annotations. Doesn't support TGZ archives.
• tar Requires more typing and preferably support of bash, e.g. tar czvf Makefile{.tgz,}. Requires support of rm to remove unused files. Doesn't support annotations.
• git Requires more effort to get familiar with. Doesn't make redundant copies (for protecting against unreliable storage devices). Doesn't support TGZ archives.

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