Add SPAKE2 password authenticated key exchange (RFC 9382) #6290

Job	Run time
Windows (shared, x86_64, windows-2022)	8m 19s
Windows (static, x86_64, windows-2022)	8m 15s
Windows (amalgamation, x86_64, windows-2022)	8m 23s
Analysis (coverage, gcc, ubuntu-24.04)	8m 27s
Linux (gcc, shared)	57s
Clang Tidy	2m 10s
Linux (gcc, amalgamation)	3m 26s
Analysis (sanitizer, clang, ubuntu-24.04)	3m 26s
Analysis (valgrind, clang, ubuntu-24.04)	1m 18s
Linux (gcc, static)	1m 2s
Linux (clang, shared)	8m 26s
Analysis (fuzzers, gcc, ubuntu-24.04)	1m 24s
Windows (shared, x86, windows-2022)	8m 16s
macOS (shared, xcode, macos-13)	2m 57s
Analysis (lint, gcc, ubuntu-24.04)	57s
macOS (amalgamation, xcode, macos-13)	4m 45s
Analysis (format, gcc, ubuntu-24.04)	33s
macOS (shared, xcode, macos-14)	1m 53s
Special (examples, gcc, ubuntu-24.04)	40s
Special (minimized, gcc, ubuntu-24.04)	31s
macOS (amalgamation, xcode, macos-14)	2m 36s
Special (bsi, gcc, ubuntu-24.04)	1m 16s
Special (docs, gcc, ubuntu-24.04)	59s
Analysis (limbo, gcc, ubuntu-24.04)	30s
Cross (cross-i386, gcc, ubuntu-22.04)	7m 47s
Special (no_pcurves, gcc, ubuntu-24.04)	1m 3s
Cross (cross-arm32, gcc, ubuntu-24.04)	1m 14s
Cross (cross-arm64, gcc, ubuntu-24.04)	4m 6s
Cross (cross-ppc64, gcc, ubuntu-24.04)	1m 17s
Cross (cross-mips64, gcc, ubuntu-24.04)	1m 18s
Cross (cross-android-arm64, clang, ubuntu-24.04)	2m 32s
Cross (static, gcc, windows-2022, make)	2m 54s
Cross (cross-ios-arm64, xcode, macos-13)	7m 28s
	1h 51m 5s

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