rename olp/porting/optional.hpp into optional.h #2022

Job	Run time
PSV.Linux.22.04.gcc9.Cpplint	9m 24s
PSV.Linux.22.04.gcc9.Tests.CodeCov	10m 53s
PSV.MacOS13.Xcode15.x86_64	3m 47s
PSV.MacOS14.Xcode15	3m 52s
PSV.Linux.22.04.gcc9.OLP_SDK_ENABLE_DEFAULT_CACHE=OFF	2m 46s
PSV.MacOS15.Xcode16	4m 35s
PSV.iOS.MacOS13.Xcode14	13m 21s
PSV.iOS.MacOS13.Xcode15	12m 10s
PSV.Linux.22.04.gcc11	8m 43s
PSV.Linux.Android.22.04	5m 50s
PSV.Linux.latest.gcc14.OLP_SDK_ENABLE_DEFAULT_CACHE=OFF	3m 39s
PSV.Linux.22.04.gcc13	8m 44s
PSV.Linux.22.04.gcc11.OLP_SDK_ENABLE_DEFAULT_CACHE=OFF	2m 26s
PSV.Linux.22.04.clang	8m 46s
PSV.Win.VC2022	10m 0s
PSV.iOS.MacOS14.Xcode15	5m 25s
PSV.iOS.MacOS15.Xcode16	9m 7s
PSV.Commit.Checker	7s
PSV.Clang.Format.Checker	1m 1s
	2h 4m 36s

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