Buffer queue

[NicoZweifel]

Summary

A buffer queue to prevent having to recreate multiple buffers per frame occasionally.

Notes

• Extreme scenarios probably need this to prevent lag/stutter.

[NicoZweifel]

Might be obsolete/redundant with #7 but it probably depends on how many materials the user actually has and when they load (e.g. submit_graph_commands or buffer creation bottlenecking).