Fixed the absolute reference issue in bazel build

[chinmayshah99]

Description

Earlier the WORKSPACE file in google DP/cc folder started making an absolute reference to the package name which caused our systems to fail as we were using relative naming. This is fixed by giving the same name to the CC folder as the actual name in google DP library thus resolving this name reference issue and now bazel can solve it internally.

Checklist

• [x] I have followed the Contribution Guidelines and Code of Conduct
• [ ] I have commented my code following the OpenMined Styleguide
• [ ] I have labeled this PR with the relevant Type labels
• [ ] My changes are covered by tests

[dibakch]

Looks as if we have a setup problem for Python 3.9 on Windows, but looks good otherwise. Thanks! :)