Added get-pip.py file for GitPython installation

[kencasimiro]

Added the Python file for installing pip to the respective python version for our project.

How to Install GitPython for the project:

Use the provided get-pip.py file in the same directory as ./python.exe in the project directory. Run ./python.exe get-pip.py This will instal pip for our respective python version. Run ./python.exe -m pip install GitPython GitPython will be successfully installed and you can now do ./python.exe -m idlelib successfully.

Additionally the user can do the following as well to install pip and then install GitPython: ./python.exe -m ensurepip --upgrade ./python.exe -m pip install GitPython

[MichaelM1]

I noticed that the git-pip.py file is very long at 32321 lines. I found another way to install pip with ./python.exe -m ensurepip --upgrade, maybe we can consider recommending users run this command instead so we can avoid unnecessary additions to the codebase?

[kencasimiro]

I think its best to include both as in the GitPython official document also suggest to use a setup.py script installation for pip. We'll add both to make sure the user can try different ways to install pip to install GitPython.

[air-wickvu]

Yes, I agree with Michael. I also had success with his method.