Changed FF in std. Started test (spoiler: is not working)

test/unit_tests/flipflop/test.prsim

@@ -0,0 +1,21 @@
+
+set t.d 0
+set t.clk 0
+set Reset 0
+cycle
+assert t.q 0
+system "echo '[0] start test'"
+set Reset 1
+cycle
+status X
+mode run
+system "echo '[1] reset completed'"
+system "echo '[2] setting d to 1'"
+set t.clk 1
+cycle
+assert t.q 0
+system "echo '[3] setting clk to 1'"
+set t.clk 1
+cycle
+assert t.q 1
+system "echo '[4] Finished'"