feat(lattices): add map_union_with_tombstones, fix #336 (#1052) #505

Job	Run time
pre_job	4s
linux-cross (aarch64-unknown-linux-gnu, aarch64)	3m 39s
linux-cross (armv7-unknown-linux-gnueabihf, armv7)	3m 43s
macos-universal (universal2-apple-darwin)	12m 28s
windows (x86_64-pc-windows-msvc, x64)	9m 35s
linux (x86_64-unknown-linux-gnu)	3m 41s
windows (i686-pc-windows-msvc, x86)	11m 12s
linux (i686-unknown-linux-gnu)	9m 8s
windows (aarch64-pc-windows-msvc, x64)	13m 40s
Release	0s
	1h 7m 10s

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