feat(typesscript): Rule "no-unused-vars-experimental"

Signed-off-by: Valentin Popov <info@valentineus.link>

ROADMAP.md

@@ -383,7 +383,7 @@
 - [X] "no-untyped-public-signature"
 - [ ] "no-unused-expressions"
 - [X] "no-unused-vars"
-- [ ] "no-unused-vars-experimental"
+- [X] "no-unused-vars-experimental"
 - [ ] "no-use-before-define"
 - [ ] "no-useless-constructor"
 - [ ] "no-var-requires"

src/rules/typescript/default.json

@@ -87,6 +87,9 @@
       "vars": "all"
     }
   ],
+  "@typescript-eslint/no-unused-vars-experimental": [
+    "error"
+  ],
   "@typescript-eslint/quotes": [
     "error",
     "double",