fix eslint

Signed-off-by: Jari Kolehmainen <jari.kolehmainen@gmail.com>

.eslintrc.js

@@ -25,6 +25,7 @@ module.exports =  {
         "build/*.ts",
         "src/**/*.ts",
         "integration/**/*.ts",
+        "src/extensions/**/*.ts*",
         "extensions/**/*.ts*"
       ],
       parser: "@typescript-eslint/parser",