Git Repository Config Parser to Generate Github Urls

[anarbayramov]

In the organisation where I work, there are several repos, and each repos has a different distribution of individual responsibilities.

Developers who place TODOs in multiple repos can therefore find it difficult to determine which repository a given TODO is in.

Seeing Rafa's following issue #66
We believed that we could benefit from this feature as well.

So in this PR introduces:

1. Primitive Git repo config parser
2. Extends existing CLI command with an additional --read-repository-config
3. Adds full url if repo-repository-config param is passed

Here is a screenshot of both usages

[anarbayramov]

I've deleted my fork which deleted my previous PR as well.
Could you please review this one?
@Edouard-chin @rafaelfranca

[anarbayramov]

Hey folks can you take a look at this PR any time soon ? :)