Wire up the rest of the sidestake contract machinery #1726

Job	Run time
Lint	1m 2s
ARM [GOAL install] [buster]	10m 22s
Win32	10m 23s
Win64	10m 22s
macOS 11 native [GOAL install] [GUI] [no depends]	9m 41s
i386 Linux [GOAL install] [focal]	10m 23s
x86_64 Linux [GOAL install] [GUI] [focal] [no depends]	10m 21s
x86_64 Linux [GOAL install] [GUI] [bionic] [no depends]	10m 23s
macOS 10.14 [GOAL deploy] [GUI] [no tests] [focal]	10m 25s
	1h 23m 22s

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