[v-1.4.2] Section Appendix A2 of PersonsList Cloud Tutorial

Appendix A2: Automated Integration Testing (UI5 Selenium Tests)
[v-1.4.2] Extension-000: Short Installation Guide for Samples

- Added ReadMe.txt describing all steps to run the extension-000 sample
- Changes of the original Getting Started tutorial code:
  * Removed selenium integration tests to avoid configuration of neo-sdk
    path in settings.xml