Add Gondi and Kolami (#324)

Requested at translatewiki:
https://translatewiki.net/w/i.php?title=Support&oldid=11456484

Gondi autonym according to Ethnologue.

Kolami autonym assumed to be the same as in Telugu,
and it also appears in the Incubator.

Co-authored-by: Niklas Laxström <niklas.laxstrom@gmail.com>

data/language-data.json

@@ -3164,6 +3164,13 @@
             ],
             "Li Niha"
         ],
+        "nit": [
+            "Telu",
+            [
+                "AS"
+            ],
+            "కొలామి"
+        ],
         "niu": [
             "Latn",
             [
@@ -4897,6 +4904,13 @@
             ],
             "Wolof"
         ],
+        "wsg": [
+            "Telu",
+            [
+                "AS"
+            ],
+            "గోండి"
+        ],
         "wuu": [
             "Hans",
             [