feat: export container from render (#567)

* feat: export root test instance from render

* test: add tests for root test instance returned from render function

* docs: add description about root test instance returned from render function

* feat: change root export to container and wrap component in View if no wrapper defined

* docs: update description about container test instance returned from render function

* test: update tests for root test instance returned from render function

* test: clean up comments in tests

* feat: add react-native as peerDependency, clean up lint ignore for lines that was importing react-native

* revert adding default wrapper

* rework tests

* reword docs

* add testID checks

* add comments

Co-authored-by: Michał Pierzchała <thymikee@gmail.com>

package.json

@@ -56,6 +56,7 @@
   },
   "peerDependencies": {
     "react": ">=16.0.0",
+    "react-native": ">=0.59",
     "react-test-renderer": ">=16.0.0"
   },
   "scripts": {