MuSig2 support #1436

Job	Run time
Compilation for X, S+, Stax and Flex (nanox, $NANOX_SDK)	1m 49s
Compile the UX-less version of the app on Nano S+ for performance tests	1m 31s
Compilation for X, S+, Stax and Flex (nanosp, $NANOSP_SDK)	1m 48s
Compilation for X, S+, Stax and Flex (stax, $STAX_SDK)	2m 5s
Compilation for X, S+, Stax and Flex (flex, $FLEX_SDK)	2m 2s
Performance report	3m 33s
Tests on mainnet (nanox)	24s
Unit test	1m 16s
Tests on mainnet (nanosp)	26s
Tests on mainnet (stax)	57s
Tests on mainnet (flex)	25s
Tests with the JS library	1m 15s
Tests with the Python library and legacy Bitcoin app	40s
Tests for rust client library	1m 33s
	19m 44s

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