Enhancement: Higher Resolution Lightmaps

[lenship2]

What would this enhancement be for?

Tools

Describe your enhancement suggestion in more detail

Allow setting smaller lightmap values (maybe in the form of decimals? I think personally the face edit window could be reworked to only allow power of 2 values on like a slider/dropdown or something), so that baked lights can be higher res and not have a notable discrepancy when compared to their dynamic counterparts

[TeamSpen210]

This is a bit tricky. Annoyingly, faces have a maximum size for the lightmap that can be applied to them. VBSP automatically subdivides down faces to stay under this limit, but at the existing grid 1 size the faces are already pretty tiny. Making it smaller would probably quickly hit the maximum face limit, even if we've expanded that. Probably we should figure out if we can increase the lightmap limit first.