Co-authored-by: NzhanglyGit <zhangly@stu.pku.edu.cn>

Add wakeup queue, refactor fuBusyTable

* Add groupByValueUnique to group map pairs by values

* TODO: support multi-enqueue

difftest: Remove diff_rat and its related ports, when both env.EnableDifftest and env.AlwaysBasicDiff are false.

1. fix some bugs
2. add VfWbFuBusyTable
3. add WBPortConflictFlag

Backend: Add pipeline level between Scheduler and DataPath for MemScheduler and VfScheduler, and replace PipelineConnect with NewPipelineConnect.

1. The decoding information of the vset instruction is wrong.
2. Function "connectNonPipedCtrlSingal" should only be used in non-piped fu not in VSET.