wire tasty's option parser into the main program option parser

This makes bash completion work for git-annex test, and is
generally cleaner.

Types/Test.hs

@@ -0,0 +1,22 @@
+{- git-annex test data types.
+ -
+ - Copyright 2011-2015 Joey Hess <id@joeyh.name>
+ -
+ - Licensed under the GNU GPL version 3 or higher.
+ -}
+
+{-# LANGUAGE CPP #-}
+
+module Types.Test where
+
+#ifdef WITH_TESTSUITE
+import Test.Tasty.Options
+#endif
+
+#ifdef WITH_TESTSUITE
+type TestOptions = OptionSet
+#else
+type TestOptions = ()
+#endif
+
+type TestRunner = TestOptions -> IO ()