MuSig2 support #1446

Job	Run time
Compilation for X, S+, Stax and Flex (nanox, $NANOX_SDK)	1m 45s
Compilation for X, S+, Stax and Flex (nanosp, $NANOSP_SDK)	1m 47s
Compilation for X, S+, Stax and Flex (stax, $STAX_SDK)	1m 56s
Compilation for X, S+, Stax and Flex (flex, $FLEX_SDK)	1m 57s
Compile the UX-less version of the app on Nano S+ for performance tests	1m 29s
Performance report	3m 38s
Tests with the JS library	1m 12s
Tests on mainnet (nanox)	26s
Tests on mainnet (nanosp)	25s
Tests with the Python library and legacy Bitcoin app	40s
Tests on mainnet (stax)	25s
Tests on mainnet (flex)	25s
Tests for rust client library	1m 33s
Unit test	1m 24s
	19m 2s

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