[Feature] Make default path configurable

[rennerdo30]

Installed product versions

• Visual Studio: 2017 15.9.11
• This extension: 1.0.183

Description

At the moment the default clone path is hardcoded to the documents folder.
It would be nice, if we can configure the default path.

GitLab.VisualStudio/src/GitLab.VisualStudio/Services/Storage.cs

Line 170 in 58e30bb

public string GetBaseRepositoryDirectory()

Steps to recreate

1. Open Clone Dialog

Current behavior

Path is hardcoded

Expected behavior

Config File / Configuration Menu to set default path