Implement ability to automatically set repository and owner from git config file

[AdmiringWorm]

Detailed Description

If a user don't provide the arguments for setting the owner and repository, it would be nice if GitReleaseManager would be able to read the configuration file inside the .git directory to figure out the current repository and owner in use.

Context

Making things easier so you don't have to hard-code (semi hard-code?) the repository and user for the git repo that GRM is currently using.

Possible Implementation

Read the git configuration file to determine the repository used (and decide what to do if multiple urls is found).

Your Environment

• Version Used: 0.11.0
• Edition Used (.NET Core, .NET Framework): Any
• Operating System and version (Windows 10, Ubuntu 18.04): Any