Have system.out.print also log the class that calls it in mods for dev/prod

[TelepathicGrunt]

Forge used to print this out in 1.12.2 (example from Silk):
[16:38:36] [main/INFO] [STDOUT]: [micdoodle8.mods.miccore.MicdoodlePlugin:injectData:292]: [Micdoodle8Core]: Patching game...

This was later removed but we should ideally add it back so players and packmakers can easily find what mod is spamming the log by using system.out.print instead of their mod's logger instead. This is the code old Forge used to have
https://github.com/MinecraftForge/MinecraftForge/blob/1.12.x/src/main/java/net/minecraftforge/fml/common/TracingPrintStream.java