Moved: ItemFit back inside CircularBufferStruct to avoid any potentia… #163

Job	Run time
build (windows-latest, net8.0, x64)	51s
build (windows-latest, net7.0, x64)	50s
build (windows-latest, net6.0, x64)	51s
build (windows-latest, net5.0, x64)	52s
build (windows-latest, netcoreapp3.1, x64)	1s
build (ubuntu-latest, net8.0, x64)	59s
build (ubuntu-latest, net7.0, x64)	1m 3s
build (ubuntu-latest, net6.0, x64)	51s
build (ubuntu-latest, net5.0, x64)	49s
build (ubuntu-latest, netcoreapp3.1, x64)	52s
build (macos-13, net8.0, x64)	52s
build (macos-13, net7.0, x64)	53s
build (macos-13, net6.0, x64)	53s
build (macos-13, net5.0, x64)	54s
build (macos-13, netcoreapp3.1, x64)	55s
build (windows-latest, net48, x64)	52s
build (windows-latest, net48, x86)	53s
build (windows-latest, net7.0, x86)	53s
build (windows-latest, net6.0, x86)	51s
build (windows-latest, net5.0, x86)	52s
build (windows-latest, netcoreapp3.1, x86)	51s
upload	0s
	17m 38s

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