Add handling and utilities for multisignature transactions #216

Job	Run time
Check Draft State	2s
Docker (production, linux/amd64) / CI	9m 28s
Docker (production, linux/arm64) / CI	25m 42s
Docker (development, linux/amd64) / CI	7m 26s
Docker (development, linux/arm64) / CI	1h 20m 29s
	2h 3m 7s

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