Fixes #114; Allow flattening options in objects #403

Job	Run time
build / linux-gcc-14-amd64 (Nim version-1-6)	2m 34s
build / linux-gcc-14-amd64 (Nim version-2-0)	4m 10s
build / linux-gcc-14-amd64 (Nim devel)	11m 59s
build / linux-gcc-14-amd64 (Nim version-2-2)	4m 10s
build / linux-amd64 (Nim version-2-2)	4m 3s
build / windows-amd64 (Nim version-2-0)	6m 52s
build / linux-amd64 (Nim version-2-0)	3m 42s
build / windows-amd64 (Nim version-1-6)	4m 15s
build / linux-amd64 (Nim devel)	11m 53s
build / linux-amd64 (Nim version-1-6)	2m 27s
build / windows-amd64 (Nim version-2-2)	6m 10s
build / windows-amd64 (Nim devel)	12m 16s
build / linux-i386 (Nim devel)	13m 25s
build / linux-i386 (Nim version-1-6)	3m 22s
build / macos-amd64 (Nim version-1-6)	4m 2s
build / linux-i386 (Nim version-2-2)	5m 15s
build / linux-i386 (Nim version-2-0)	5m 18s
build / macos-amd64 (Nim version-2-0)	7m 50s
build / macos-amd64 (Nim version-2-2)	5m 46s
build / macos-arm64 (Nim version-1-6)	2m 44s
build / macos-amd64 (Nim devel)	14m 10s
build / macos-arm64 (Nim version-2-0)	3m 34s
build / macos-arm64 (Nim version-2-2)	3m 37s
build / macos-arm64 (Nim devel)	4m 1s
	2h 27m 35s

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