add: SBM as network for membership vector #99

Job	Run time
Build wheels on Linux (x86_64)	22m 19s
Build wheels on Linux (aarch64/manylinux)	11m 16s
Build wheels on macOS (arm64)	5m 57s
Build wheels on Linux (aarch64/musllinux)	7m 9s
Build wheels on Windows (x64)	21m 32s
Build wheels on macOS (x86_64)	6m 16s
Build wheels on Windows (Win32)	8m 35s
Build sdist and test extra dependencies	4m 34s
Build wheels for WebAssembly	7m 17s
Build with sanitizers for debugging purposes	2m 39s
Build wheels on Windows (ARM64)	14m 6s
	1h 51m 40s

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