Taproot support #1842

Job	Run time
linter_gui	1m 33s
linter	34s
unit_tests (1.63, ubuntu-latest)	1m 46s
unit_tests (1.63, macOS-latest)	2m 20s
unit_tests (1.63, windows-latest)	2m 41s
unit_tests (nightly, ubuntu-latest)	1m 10s
unit_tests (nightly, macOS-latest)	2m 31s
unit_tests (nightly, windows-latest)	2m 24s
unit_tests_gui (1.65.0, ubuntu-latest)	3m 51s
unit_tests_gui (1.65.0, macOS-latest)	7m 2s
unit_tests_gui (1.65.0, windows-latest)	5m 17s
unit_tests_gui (nightly, ubuntu-latest)	2m 43s
unit_tests_gui (nightly, macOS-latest)	2m 59s
unit_tests_gui (nightly, windows-latest)	4m 30s
	41m 21s

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