misc...
* restrict unwanted angle(s) keys commits on moving generic, eclassmodel, miscmodel entities
* reverted angle(s), origin, scale entity keys save format from %f to %g
* fix uniform rotation operations for generic entities with angles key
* use more precise meth for rotating point entities with only angle rotated
* snap tiny inaccuracies in angle(s) and origin point entities keys
* workaround: don't discard empty group ents, having origin key
* entity class convertion: prevent converting worldspawn; prevent converting point entity to empty group
* shot down spammy warning about samplesize for lmsize<=128; -debugsamplesize to show
* numBspModels ('brusmodels') stat emitting
Radiant:
misc...
* filters toolbar (disableable)
* fix: shift + m1 click in tex browser to open shader in internal/external editor;
defaulted internal; focuses on wanted shader; correct opening/saving
* fix: angles "0 x 0" autoconvert to angle "x" on transform (was getting deleted w/o a trace)
