zzre: Improve actor performance

[Helco]

As ActorRenderer was causing severe lags, finally some performance improvement was in order. Specifically:

• We use the topological sorting we already have to speed up bone matrix calculation
• We bundle actor data uploads to prevent closing and reopening render passes
• We use frustum culling on the actors
• As well as models

For comparable situations that brought ActorRenderer frametime from 6ms to 1.5ms (4ms without frustum culling)