Changed: fat LTO and restored rlib temporarily #152

Job	Run time
build (windows-latest, net7.0, x64)	2m 23s
build (windows-latest, net6.0, x64)	2m 40s
build (windows-latest, net5.0, x64)	3m 13s
build (windows-latest, netcoreapp3.1, x64)	3m 48s
build (ubuntu-latest, net7.0, x64)	1m 8s
build (ubuntu-latest, net6.0, x64)	1m 4s
build (ubuntu-latest, net5.0, x64)	49s
build (ubuntu-latest, netcoreapp3.1, x64)	56s
build (macos-13, net7.0, x64)	1m 42s
build (macos-13, net6.0, x64)	2m 38s
build (macos-13, net5.0, x64)	1m 49s
build (macos-13, netcoreapp3.1, x64)	1m 34s
build (windows-latest, net48, x64)	2m 45s
build (windows-latest, net48, x86)	2m 14s
build (windows-latest, net7.0, x86)	2m 38s
build (windows-latest, net6.0, x86)	4m 45s
build (windows-latest, net5.0, x86)	4m 22s
build (windows-latest, netcoreapp3.1, x86)	2m 23s
upload	1m 21s
	44m 12s

Provide feedback