Add language options to extra language feat (#494)

Author: SleeplessOne1917

src/5e-SRD-Traits.json

@@ -433,6 +433,127 @@
       "You can speak, read, and write one extra language of your choice."
     ],
     "proficiencies": [],
+    "language_options": {
+      "choose": 1,
+      "type": "languages",
+      "from": {
+        "option_set_type": "options_array",
+        "options": [
+          {
+            "option_type": "reference",
+            "item": {
+              "index": "dwarvish",
+              "name": "Dwarvish",
+              "url": "/api/languages/dwarvish"
+            }
+          },
+          {
+            "option_type": "reference",
+            "item": {
+              "index": "giant",
+              "name": "Giant",
+              "url": "/api/languages/giant"
+            }
+          },
+          {
+            "option_type": "reference",
+            "item": {
+              "index": "gnomish",
+              "name": "Gnomish",
+              "url": "/api/languages/gnomish"
+            }
+          },
+          {
+            "option_type": "reference",
+            "item": {
+              "index": "goblin",
+              "name": "Goblin",
+              "url": "/api/languages/goblin"
+            }
+          },
+          {
+            "option_type": "reference",
+            "item": {
+              "index": "halfling",
+              "name": "Halfling",
+              "url": "/api/languages/halfling"
+            }
+          },
+          {
+            "option_type": "reference",
+            "item": {
+              "index": "orc",
+              "name": "Orc",
+              "url": "/api/languages/orc"
+            }
+          },
+          {
+            "option_type": "reference",
+            "item": {
+              "index": "abyssal",
+              "name": "Abyssal",
+              "url": "/api/languages/abyssal"
+            }
+          },
+          {
+            "option_type": "reference",
+            "item": {
+              "index": "celestial",
+              "name": "Celestial",
+              "url": "/api/languages/celestial"
+            }
+          },
+          {
+            "option_type": "reference",
+            "item": {
+              "index": "draconic",
+              "name": "Draconic",
+              "url": "/api/languages/draconic"
+            }
+          },
+          {
+            "option_type": "reference",
+            "item": {
+              "index": "deep-speech",
+              "name": "Deep Speech",
+              "url": "/api/languages/deep-speech"
+            }
+          },
+          {
+            "option_type": "reference",
+            "item": {
+              "index": "infernal",
+              "name": "Infernal",
+              "url": "/api/languages/infernal"
+            }
+          },
+          {
+            "option_type": "reference",
+            "item": {
+              "index": "primordial",
+              "name": "Primordial",
+              "url": "/api/languages/primordial"
+            }
+          },
+          {
+            "option_type": "reference",
+            "item": {
+              "index": "sylvan",
+              "name": "Sylvan",
+              "url": "/api/languages/sylvan"
+            }
+          },
+          {
+            "option_type": "reference",
+            "item": {
+              "index": "undercommon",
+              "name": "Undercommon",
+              "url": "/api/languages/undercommon"
+            }
+          }
+        ]
+      }
+    },
     "url": "/api/traits/extra-language"
   },
   {