new project: add git support #218

would save time if can create new project from github url (clone and then create/open project),
or create new project, toggle create github repo, then it creates that repo for you.

TODO

• add new UI for these features, in new project dialog
• make it collapsible ui? so can keep it minimized, if not used (save state, if keep maximized)
• github REST api, create repo
• check how to fetch git repo from given url (if you already have repo that you want to use as base or as empty base)
• github: add initial files to repo (or commit from local files easier?) *dont commit empty project, first want to clean it up
• check if project name is available (that its not already used)
• add settings toggles for git/github features
• add PAT token support (if need to create or fetch private repos)
• validate PAT token
• save PAT token in some secure way? Windows Credential Manager
• suggest repo name if already in use? (adds number or so..) *This should be separate field from projectname, if want to use different
• visibility toggle: default private
• checkbox git lfs checkbox
• checkbox add unity .gitignore
• checkbox add .gitattributes?
• checkbox create initial commit?
• repo description (no need usually)
• branch name (no need usually)
• check if git.exe is available in PATH
• if version control is enabled, then expand the version control panel
• add load/save settings for these controls
• add setup panel for Token (if no token, display token input field and validate button, and button to create token in web)
• add disconnect token (remove from secure storage)
• disable version control, if no token found
• display token setup panel if token fails? or settings button to setup token?
• handle no internet connection?
• open repo url after creation
• lock dialog ui, while its creating repo and git files
• make token field as pwd field
• if git enabled, show create project button as "Create project + Repo" or so
• include .gitignore and .gitattributes, so no need to download everytime
• allow creating readme, gitattirbutes, gitignore, even if versioncontrol is off
• save token username in same data.. otherwise not visible in another launcher instance