Add script to build all configs and run tests in one step.
Add script to build all configs and run tests in one step.

LanceMcCarthy/Win2D,ChrisBriggsy/Win2D,LanceMcCarthy/Win2D,zjsxwc/Win2D,ChrisBriggsy/Win2D,ChrisBriggsy/Win2D,zjsxwc/Win2D,LanceMcCarthy/Win2D,zjsxwc/Win2D