connecting components in controller

commandbus changing state when scheduling commands
added some tests

DRAM/src/core/scheduling/checker/WriteChecker.cpp

@@ -13,6 +13,13 @@ void WriteChecker::check(ScheduledCommand& command) const
 {
 }
 
+sc_time WriteChecker::getExecutionTime(const tlm::tlm_generic_payload& transaction,
+		Command command) const
+{
+	assert(command == Command::Write || command == Command::WriteA);
+	return config.Timings.clk*8;
+}
+
 void WriteChecker::cb_IInternalScheduler(const ScheduledCommand& command)
 {
 }