Switch Deep-netherbrick to a texture with licence allowing adaption & redistribution (CC BY-SA 4.0)

To fix #52, while trying to capture some of the feel of the original texture.

README.md

@@ -60,6 +60,7 @@ SOFTWARE.
 ### [Attribution-ShareAlike 4.0 International (CC BY-SA 4.0)](https://creativecommons.org/licenses/by-sa/4.0/)
  * `nether_basalt`* (files starting with "nether_basalt"): Treer, 2020
  * `nether_book_`* (files starting with "nether_book"): Treer, 2019-2020
+ * `nether_brick_deep.png`: Treer, 2021
  * `nether_fumarole.ogg`: Treer, 2020
  * `nether_lava_bubble`* (files starting with "nether_lava_bubble"): Treer, 2020
  * `nether_lava_crust_animated.png`: Treer, 2019-2020
@@ -74,7 +75,4 @@ SOFTWARE.
  * `nether_rack`* (files starting with "nether_rack"): Zeg9
  * `nether_tool_`* (files starting with "nether_tool_"): color adjusted versions from "[default](https://github.com/minetest/minetest_game/tree/master/mods/default)" mod, originals by BlockMen
 
-### [Unlicensed but permission for inclusion by kovaszos_uborka](https://www.planetminecraft.com/member/kovaszos_uborka/)
- * `nether_brick_deep.png` (edited by TenPlus1)
-
 All other media: Copyright © 2013 PilzAdam, licensed under CC BY-SA 3.0 by PilzAdam.

nodes.lua

@@ -163,7 +163,11 @@ minetest.register_node("nether:fence_nether_brick", {
 
 minetest.register_node("nether:brick_deep", {
 	description = S("Deep Nether Brick"),
-	tiles = {"nether_brick_deep.png"},
+	tiles = {{
+		name        = "nether_brick_deep.png",
+		align_style = "world",
+		scale       = 2
+	}},
 	is_ground_content = false,
 	groups = {cracky = 2, level = 2},
 	sounds = default.node_sound_stone_defaults()