Updated to 1.21

Removed support for Forge
Added support for NeoForge

Added a new location for Visual Speed Type (WIP) slight bug

Made Cloth Config an optional dependency (as of version 6.2)

neoforge/src/main/resources/updateChecker.json

@@ -0,0 +1,11 @@
+{
+  "homepage": "https://modrinth.com/mod/speedometer/versions",
+  "1.21": {
+    "6.0": "Lost support for Forge and gain NeoForge support",
+    "6.0.1": "Small bug fix in Parser"
+  },
+  "promos": {
+    "1.21-latest": "6.0.1",
+    "1.21-recommended": "6.0.1",
+  }
+}