Merge: from procpop_debug - Bugfix: fix DensitySpawnPopulation prefab pool being starved out, resulting in failed spawn attempts - Optim: DensitySpawnPopulation early exits if it reached prefab population target isntead of continuing to try to spawn - New: spawn.report now contains info about failed iterations and how many entities it recently spawned - New: spawn.dump_map <pop> [count] which simulates spawns and generates pngs indicating general spawn area and attempted spawns. Pngs in <server_ident>/debug. Tests: 4.5k procgen in editor - server started with full junkpile pop, simulated spawn gave better numbers