Add comparison operators and FromDotnetTicks to DateTimeNanos (#476) #1937

Job	Run time
Build native x64 library (ubuntu-20.04)	3m 29s
Build native arm64 library (ubuntu-20.04)	1m 48s
Check format	46s
Build native x64 library (macos-12)	2m 29s
Build native arm64 library (macos-12)	2m 41s
Build native x64 library (windows-2022)	8m 51s
Build NuGet package	34s
Test NuGet package (netcoreapp3.1 on ubuntu-20.04)	1m 45s
Test NuGet package (net6.0 on ubuntu-20.04)	1m 13s
Test NuGet package (net7.0 on ubuntu-20.04)	1m 25s
Test NuGet package (net8.0 on ubuntu-20.04)	1m 18s
Test NuGet package (net6.0 on ubuntu-22.04-arm64)	1m 59s
Test NuGet package (net7.0 on ubuntu-22.04-arm64)	1m 50s
Test NuGet package (net8.0 on ubuntu-22.04-arm64)	1m 50s
Test NuGet package (netcoreapp3.1 on macos-12)	2m 2s
Test NuGet package (net6.0 on macos-12)	1m 26s
Test NuGet package (net7.0 on macos-12)	1m 22s
Test NuGet package (net8.0 on macos-12)	1m 20s
Test NuGet package (netcoreapp3.1 on macos-13)	1m 36s
Test NuGet package (net6.0 on macos-13)	1m 51s
Test NuGet package (net7.0 on macos-13)	1m 24s
Test NuGet package (net8.0 on macos-13)	1m 18s
Test NuGet package (net6.0 on macos-14)	57s
Test NuGet package (net7.0 on macos-14)	53s
Test NuGet package (net8.0 on macos-14)	47s
Test NuGet package (netcoreapp3.1 on windows-2022)	4m 25s
Test NuGet package (net6.0 on windows-2022)	3m 56s
Test NuGet package (net7.0 on windows-2022)	3m 55s
Test NuGet package (net8.0 on windows-2022)	3m 1s
Test NuGet package (net472 on windows-2022)	4m 18s
All required checks done	1s
Publish release	0s
	1h 6m 30s

Provide feedback