Asset type picker entries are now handled by AssetBrowser/CloudBrowser
Open up asset locations
https://files.facepunch.com/alexguthrie/1b0211b1/sbox-dev_mXx146R80H.png
Add all types to cloud browser
Can only select one cloud asset type at once (or it'll mess with facets etc.)
https://files.facepunch.com/alexguthrie/1b0211b1/sbox-dev_1BIcVF3lFI.mp4
Order modes
Add cloud browser to hammer
Asset browser defaults to project assets path
Update view mode icon when scrolling
Disable Parent Directory button if we're in project assets root
PathWidget fixes, separate segment update
Remove AssetBrowserLocation.FromPath, unused
Run OnPathEdited at the end of AssetBrowser ctor so we can disable Parent Directory button if needed