Feature/controller test helper (#71)

* Add beginnings of ControllerInvoker

* Restructure, rename for logical consistency

* Fix several static analysis issues

* Remove league/plates until ready to integrate completely

composer.json

@@ -36,6 +36,7 @@
     "cspray/labrador-coding-standard": "0.1.0",
     "cspray/stream-buffer-intercept": "^0.1.0",
     "mikey179/vfsstream": "^1.6",
+    "mockery/mockery": "^1.6",
     "phpunit/phpunit": "^9.5",
     "psalm/phar": "^5.0",
     "roave/security-advisories": "dev-latest"
@@ -48,7 +49,7 @@
   "autoload-dev": {
     "psr-4": {
       "Labrador\\Test\\": "test",
-      "Labrador\\DummyApp\\": "dummy_app"
+      "Labrador\\DummyApp\\": "dummy_app/src"
     }
   },
   "extra": {