Add missing textures and models from Chorus' Version

This also helps in preparing for the Nether Update (1.16). Textures were
optimised using OptiPNG by:

optipng -o7 -nx

followed by a second run with the defaults.

assets/minecraft/textures/models/block/ore/lapis/1.json

@@ -0,0 +1,6 @@
+{
+    "parent": "block/cube_all",
+    "textures": {
+        "all": "block/lapis_ore1"
+    }
+}