[ENHANCEMENT] add testname and suitename to launch config

[d-biehl]

this should present the -t --test/task and -s --suite command line arguments of robot.

{
    "name": "Regression Tests",
    "type": "robotcode",
    "request": "launch",
    "presentation": {
        "hidden": true
    },
    "purpose": "test-profile",
    "include": ["regression"],
    "testname": ["first test"],
    "suitename": ["demo.suite1.suite2"]
},