add winfsp-tests and ext/tlib

tst/winfsp-tests/mount-test.c

@@ -0,0 +1,11 @@
+#include <winfsp/winfsp.h>
+#include <tlib/testsuite.h>
+
+void mount_test(void)
+{
+}
+
+void mount_tests(void)
+{
+    TEST(mount_test);
+}

tst/winfsp-tests/winfsp-tests.c

@@ -0,0 +1,8 @@
+#include <tlib/testsuite.h>
+
+int main(int argc, char *argv[])
+{
+    TESTSUITE(mount_tests);
+    tlib_run_tests(argc, argv);
+    return 0;
+}