As a user, I can import Test data from TestLink using the XML format

As a user, I can import Test data from TestLink using the XML format

ACs:

• Test case and Test Suites shall be imported to Tests and Test Sets respectively
• the user shall decide to which project Tests shall be imported to

References:

• https://github.com/TestLinkOpenSourceTRMS/testlink-code
• https://www.tutorialspoint.com/testlink/testlink_export_data.htm