Taproot support #1788

Job	Run time
linter_gui	1m 35s
linter	46s
unit_tests (1.63, ubuntu-latest)	4m 36s
unit_tests (1.63, macOS-latest)	9m 25s
unit_tests (1.63, windows-latest)	5m 58s
unit_tests (nightly, ubuntu-latest)	57s
unit_tests (nightly, macOS-latest)	2m 25s
unit_tests (nightly, windows-latest)	1m 39s
unit_tests_gui (1.65.0, ubuntu-latest)	6m 51s
unit_tests_gui (1.65.0, macOS-latest)	8m 3s
unit_tests_gui (1.65.0, windows-latest)	8m 16s
unit_tests_gui (nightly, ubuntu-latest)	2m 37s
unit_tests_gui (nightly, macOS-latest)	3m 42s
unit_tests_gui (nightly, windows-latest)	5m 33s
	1h 2m 23s

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