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Port picture buffer refactoring from ecm/ECM!523

Xiang Li requested to merge XiangLi/VVCSoftware_VTM:xlxiangli/mem_tempfilter into master

Test results with RA classB are as follows. The anchor is the current master tip (VTM-22-31d07037). 11% memory saving (VmPeak) is observed, which is about 340MB (average 2.98GB to average 2.64GB)

Over VTM-22-31d07037
Y U V EncT DecT VmPeak
Class A1 #VALUE! #VALUE! #VALUE! #DIV/0! #DIV/0! #DIV/0!
Class A2 #VALUE! #VALUE! #VALUE! #DIV/0! #DIV/0! #DIV/0!
Class B 0.00% 0.00% 0.00% 100.5% 101.3% 89%
Class C #VALUE! #VALUE! #VALUE! #DIV/0! #DIV/0! #DIV/0!
Class E
Overall (Ref) #VALUE! #VALUE! #VALUE! #DIV/0! #DIV/0! #DIV/0!
Class D #VALUE! #VALUE! #VALUE! #DIV/0! #DIV/0! #DIV/0!
Class F #VALUE! #VALUE! #VALUE! #DIV/0! #DIV/0! #DIV/0!

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