This patch adds drawing of previews of Movie Clips in the Asset Browser.
Until the Asset Browser gets a side-car system implemented, displaying Movie Clips as previews, combined with making the VSE receive dropped IDs D13304, and a script https://gist.github.com/tin2tin/0da859896432245fd15cfe960fdd9ee9 to convert selected strips to assets will allow for the asset browser(and outliner) to work as scene-independent a/v source-material tagging, organization, and acces.
Ex. a/v material organized into scenes:
