Add backgammon and board game crate (#5884)

* [ADD] backgammon, made pieces generic

* [ADD] board game crate

* [REMOVE] minor whitespace

* Fix BOM

* [CHANGE] feedback changes, condensed backgammon setup

* [CHANGE] swapped backgammon y positions to correct ones

Co-authored-by: fishfish458 <fishfish458>
Co-authored-by: Visne <39844191+Visne@users.noreply.github.com>

Resources/Textures/Objects/Fun/Tabletop/generic_pieces.rsi/meta.json

@@ -0,0 +1,29 @@
+{
+    "version": 1,
+    "license": "CC-BY-SA-3.0",
+    "copyright": "Zumorica, Fishfish458",
+    "size": {
+        "x": 24,
+        "y": 24
+    },
+    "states": [
+        {
+            "name": "red"
+        },
+        {
+            "name": "green"
+        },
+        {
+            "name": "yellow"
+        },
+        {
+            "name": "blue"
+        },
+        {
+            "name": "white"
+        },
+        {
+            "name": "black"
+        }
+    ]
+}