Fix Version not found error

[PrajwalM2212]

It was reported that running cve-bin-tool after running python3 setup.py install resulted in file not found error due to missing VERSION file.

[PrajwalM2212]

There are 2 ways to solve this,

1. package_data
2. data_files (currently used method)

The package_data method only works if the VERSION file is inside the package cve_bin_tool, but VERSION currently resides in cve-bin-tool directory.

https://docs.python.org/3/distutils/setupscript.html#installing-additional-files

[terriko]

Is there a reason not to just move VERSION into cve_bin_tool with the rest? If that's the sort of standard packaging flow, maybe we should just move it. Unless there's a benefit to having it in the main directory?

[terriko]

Thoguht about this over lunch -- I think probably moving VERSION is the right longer-term solution, but since this bug is affecting people right now I'm going to merge this and then open an issue to move it later.