feat: Move TypeScript to a peer dependency

Closes #880

Author: Gerrit0

UPDATING.md

@@ -39,8 +39,10 @@
     "minimatch": "^3.0.0",
     "progress": "^2.0.3",
     "shelljs": "^0.8.3",
-    "typedoc-default-themes": "0.8.0-0",
-    "typescript": "3.7.x"
+    "typedoc-default-themes": "0.8.0-0"
+  },
+  "peerDependencies": {
+    "typescript": "3.x"
   },
   "devDependencies": {
     "@types/fs-extra": "^8.0.1",