add option to download unity templates

[unitycoder]

since they are probably accessible without login

• find out what urls are used for downloading templates
• add option to disable online templates (so that it doesnt start fetching online content)
• show which templates are already downloaded
• check if hub has already downloaded some templates? in which folder this is saved?
• cache downloaded template files into some folder (if hub is installed, could use same folder that they use)
• unpack template into new project
• filter templates by selected unity version
• show necessary details for selected template (from graphql data) in mouse over or when selected
• show if update is available for already downloaded template
• add context menu to explore template cache folder
• cache templates fetch per unity version (per session?)

[hifron]

unity suggestion for templates is make a project, copy it and rename

some packages templates like for 2D projects and then manually uninstall packages via Unity Editor UI, download assets and install some packages, configure external editor(and built settings in future without asmdef but with .NET build(and someday also with XML .NET csprojectx build)) and AI usage, this is out of Unity.com NASDAQ thought... because programmers are hot for not healthy templates disaster...

[unitycoder]

seems to be behind graphql query (and per editor version)

but found something promising

[unitycoder]

wip: