Slashes in app, test names runs but breaks things later

[hagertnl]

If you run a test like:

Test = unit_tests grouping1/test_1

with the intention of grouping some tests within subdirectories in the repository, the test technically runs successfully, but "grouping1" becomes the application name in the status files (and in InfluxDB), instead of unit_tests.
Directories are all set up correctly, but I assume that there's some sort of relative path checking to derive the application and test name, where it should just be set by what is provided in the input file.

Current Result:
app=grouping1 test=test_1

Expected:
app=unit_tests test=grouping1/test_1

[ddietz89]

We should validate inputs don't have slashes like this, but later look at adding test grouping support.