Client: Split physics and visual entities and add camera following #360

Job	Run time
build (windows-latest, windows, x64, .zip, debug)	17m 31s
build (windows-latest, windows, x64, .zip, releasedbg)	7m 47s
build (ubuntu-latest, linux, x86_64, .tar.gz, debug)	16m 7s
build (ubuntu-latest, linux, x86_64, .tar.gz, releasedbg)	18m 27s
build (macos-12, macos, x86_64, .tar.gz, debug)	25m 58s
build (macos-12, macos, x86_64, .tar.gz, releasedbg)	29m 32s
build (macos-14, macos, arm64, .tar.gz, debug)	28m 47s
build (macos-14, macos, arm64, .tar.gz, releasedbg)	57m 17s
	3h 21m 26s

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