[MC-123589] Inconsistent texture renaming

The bug

The renamed textures in the 1.13 snapshot files have inconsistent renamings. These inconsistencies in name change make it harder to identify the name of a texture.

Affected textures files

Last updated for 17w50a
List is incomplete

Redstone related blocks

Powered name	Unpowered name
repeater_on	repeater
redstone_torch	redstone_torch_off
redstone_lamp_on	redstone_lamp_off
comparator_on	comparator