4 new Lizard Horn markings (#20496)

* add images to .rsi

* Revert "add images to .rsi"

This reverts commit afa891ee9456c35dd88d5baa4269568286282955.

* add images to .rsi (for real now)

* other misc files

Resources/Textures/Mobs/Customization/reptilian_parts.rsi/meta.json

@@ -1,7 +1,7 @@
 {
   "version": 1,
   "license": "CC-BY-SA-3.0",
-  "copyright": "https://github.com/Skyrat-SS13/Skyrat-tg/tree/40e3cdbb15b8bc0d5ef2fb46133adf805bda5297",
+  "copyright": "https://github.com/Skyrat-SS13/Skyrat-tg/tree/40e3cdbb15b8bc0d5ef2fb46133adf805bda5297, while Argali, Ayrshire, Myrsore and Bighorn are drawn by Ubaser",
   "size": {
     "x": 32,
     "y": 32
@@ -147,6 +147,22 @@
 	  "name": "r_arm_tiger",
 	  "directions": 4
 	},
+        {
+	  "name": "horns_argali",
+	  "directions": 4
+	},
+        {
+	  "name": "horns_ayrshire",
+	  "directions": 4
+	},
+        {
+	  "name": "horns_myrsore",
+	  "directions": 4
+	},
+        {
+	  "name": "horns_bighorn",
+	  "directions": 4
+	},
 	{
 	  "name": "r_leg_tiger",
 	  "directions": 4