Major release with Smart-TestAuto-Studio

This release includes the major changes as given below (It has summary of all 6.0.0-alpha versions):

1. Add support of STAS (Smart-TestAuto-Studio) along with document to configure new project and configure applications to STAS.
2. Added in-built command line support to configure the STAS and run the test cases on different types of environments like Windows, Linux, MacOS etc..
3. Added support of Standard Cucumber Step Definitions (English) to prepare / automate test scenario easily to support NO CODE / LOW CODE model. Refer https://github.com/mkrishna4u/smart-testauto-cucumber-stepdefs-en link documentation / source code for more details. STAS documentation is available at [https://github.com/mkrishna4u/smart-testauto-framework/blob/main/smart-testauto-studio/latest/docs/STAS-TestDevelopersGuide.pdf] (https://github.com/mkrishna4u/smart-testauto-framework/blob/main/smart-testauto-studio/latest/docs/STAS-TestDevelopersGuide.pdf "").
4. Enhanced code in many files and fixed many defects.
5. Fixed download file issues in AppDriver.yaml files.
6. Added meaningful / useful sample scenarios.