RedfishPkg/JsonLib: add object clear interface #365

Job	Run time
Analyze (ArmPkg, IA32,X64)	12m 7s
Analyze (CryptoPkg, IA32)	21m 20s
Analyze (CryptoPkg, X64)	28m 9s
Analyze (DynamicTablesPkg, IA32,X64)	11m 41s
Analyze (FatPkg, IA32,X64)	17m 32s
Analyze (FmpDevicePkg, IA32,X64)	16m 9s
Analyze (IntelFsp2Pkg, IA32,X64)	17m 26s
Analyze (IntelFsp2WrapperPkg, IA32,X64)	15m 8s
Analyze (MdeModulePkg, IA32)	23m 46s
Analyze (MdeModulePkg, X64)	27m 22s
Analyze (MdePkg, IA32,X64)	23m 48s
Analyze (PcAtChipsetPkg, IA32,X64)	21m 30s
Analyze (PrmPkg, IA32,X64)	19m 20s
Analyze (SecurityPkg, IA32,X64)	19m 40s
Analyze (ShellPkg, IA32,X64)	25m 8s
Analyze (SourceLevelDebugPkg, IA32,X64)	16m 32s
Analyze (StandaloneMmPkg, IA32,X64)	19m 42s
Analyze (UefiCpuPkg, IA32,X64)	18m 25s
Analyze (UnitTestFrameworkPkg, IA32,X64)	18m 54s
	6h 13m 39s

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