test: Add integration(e2e) test (#424)

* init detox e2e test

* Add first e2e test

* add android configurations

* fix detox rn-camera problem

* add CI integration

* update ci settings

* update xcode version

* use legacy build in CI

* prettier xcode output

* update with android

* revert back to origin CI test

* add E2E test in readme

* Update .travis.yml

* update detox guide

* renaming

* update readme

* Update README.md

Co-Authored-By: Thibaut Sardan <33178835+Tbaut@users.noreply.github.com>

* Update .travis.yml

* Update README.md

* fix binary path problem

* remove before each reloading

* rephrase
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