adding support for SDC

[UplinkCoder]

Hello,
Since there is now more activity on the sdc project, I'd like you to add sdc to the d-auto-tester.

If needed I can provide more info about the test-infrasturcture we currently use and I will adapt it, if the need arises.

Regards,
UplinkCoder

[braddr]

This will require some work on my end. The tester really isn't well engineered to test more than dmd. The GDC support that's in there is half-assed at best and adding SDC will compound the problem. All issues I really do want to address, just not sure how much deeper I want to dig the technical debt before doing some deep fixing.

In the short term, please add links to the appropriate build and test instructions that people are following manually right now.

[UplinkCoder]

well building is easy
you just execute make in the directory where the repo is checked out.
as for testing cd tests && dmd runner.d && ./runner does it.
I expect I'll have to modify the test-runner as it does currently not throw much information out there

[UplinkCoder]

@braddr please tell me if I can help getting the infrastructure up to speed