New armor and connected textures!

In the eleventh update of SapixCraft for 1.13 I changed diamond, iron, gold and chainmail armor! I also updated the 1.12 textures. The people using Optifine now have connected glass and connected gold blocks.

Added things:

updated textures for Minecraft 1.12.2
connected glass (optifine required)
connected glass pane (optifine required)
connected gold block (optifine required)

Changed things:

Diamond Armor
Iron Armor
Gold Armor
Chainmail Armor