MuSig2 support #1443

Job	Run time
Compilation for X, S+, Stax and Flex (nanox, $NANOX_SDK)	1m 56s
Compile the UX-less version of the app on Nano S+ for performance tests	1m 32s
Compilation for X, S+, Stax and Flex (nanosp, $NANOSP_SDK)	1m 56s
Compilation for X, S+, Stax and Flex (stax, $STAX_SDK)	2m 2s
Compilation for X, S+, Stax and Flex (flex, $FLEX_SDK)	1m 53s
Performance report	3m 34s
Unit test	1m 20s
Tests on mainnet (nanox)	25s
Tests with the Python library and legacy Bitcoin app	39s
Tests on mainnet (nanosp)	27s
Tests with the JS library	1m 16s
Tests on mainnet (stax)	25s
Tests for rust client library	1m 33s
Tests on mainnet (flex)	24s
	19m 22s

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