Adding MODS_FORGEAPI to auto-download by project ids (#1275)

Co-authored-by: christopher blodgett <christopher.blodgett@gmail.com>
Co-authored-by: Geoff Bourne <itzgeoff@gmail.com>

tests/setuponlytests/vanillatweaks_file/docker-compose.yml

@@ -0,0 +1,14 @@
+version: "3"
+
+services:
+  mc:
+    restart: "no"
+    image: ${IMAGE_TO_TEST:-itzg/minecraft-server}
+    environment:
+      EULA: "TRUE"
+      SETUP_ONLY: "TRUE"
+      VERSION: ${MINECRAFT_VERSION:-LATEST}
+      VANILLATWEAKS_FILE: /config/vanillatweaks-datapacks.json
+      REMOVE_OLD_VANILLATWEAKS: "TRUE"
+    volumes:
+      - ./vanillatweaks-datapacks.json:/config/vanillatweaks-datapacks.json:ro

tests/setuponlytests/vanillatweaks_file/vanillatweaks-datapacks.json

@@ -0,0 +1,17 @@
+{
+    "type": "datapacks",
+    "version": "1.18",
+    "packs": {
+        "survival": [
+            "graves",
+            "multiplayer sleep",
+            "afk display",
+            "armor statues",
+            "unlock all recipes",
+            "fast leaf decay",
+            "coordinates hud"
+        ],
+        "items": ["armored elytra"]
+    },
+    "result": "ok"
+}