Implement secp256r1 curve support #232

Job	Run time
Build on Ubuntu for androidarm64	3m 54s
Build on macOS for iphoneos	1m 6s
Build on Ubuntu for androidx86_64	3m 53s
Build on Ubuntu 24.04 amd64	1m 5s
Build on Windows (windows-2025, arm64)	1m 2s
Run CodeQL tests	1m 4s
Build on Windows (windows-2025, x64)	57s
Build on macOS for iphonesimulator	1m 17s
Build on Ubuntu 22.04 amd64	1m 0s
Build on Ubuntu 25.10 amd64	1m 6s
Build on Ubuntu 22.04 arm64	1m 4s
Build on macOS for macos	59s
Build on Ubuntu for androidarm	3m 38s
Build on Ubuntu 25.10 arm64	1m 4s
Build on Ubuntu 24.04 arm64	1m 4s
Deploy pages	-1s
Run Coverity tests	-1s
	24m 11s

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