Add methods to construct a sparse CscMatrix from column-major and row… #39

Job	Run time
Build and Test (ubuntu-22.04, x86_64-unknown-linux-gnu, 1.63)	49s
Build and Test (ubuntu-22.04, x86_64-unknown-linux-gnu, stable)	24s
Build and Test (ubuntu-22.04, x86_64-unknown-linux-gnu, beta)	22s
Build and Test (ubuntu-22.04, x86_64-unknown-linux-gnu, nightly)	19s
Build and Test (macos-13, x86_64-apple-darwin, 1.63)	1m 25s
Build and Test (macos-13, x86_64-apple-darwin, stable)	51s
Build and Test (windows-2019, x86_64-pc-windows-msvc, 1.63)	1m 43s
Build and Test (windows-2019, x86_64-pc-windows-msvc, stable)	1m 30s
Build and Test (windows-2019, i686-pc-windows-msvc, 1.63)	2m 2s
Build and Test (windows-2019, i686-pc-windows-msvc, stable)	1m 12s
Build and Test (windows-2019, i686-pc-windows-msvc, beta)	1m 33s
Build and Test (windows-2019, i686-pc-windows-msvc, nightly)	1m 39s
Build and Test Succeeded	3s
	13m 52s

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