Implement TestRail plugin

[YLeight]

Implement integration with TestRail API

[YLeight]

The plugin should provide the next opportunities:

• Create TestRail Test Run for each tasty run
• Create TestRail Test Case for each tasty case
• Add TestRail Results for each tasty case

[YLeight]

First version of TestRail class

[YLeight]

First version with the usage of TestRail class

[YLeight]

Python implementation

[YLeight]

TestRail for testing