Support getting encryption context on a message #1002

Job	Run time
Formatting Check	1m 34s
Lint	18m 24s
Build the Wireshark dissector (ubuntu-latest)	43s
Run unit tests	13m 28s
Build CPP Client on ${{ matrix.name }}	0s
Build CPP Client on macOS with static dependencies	1s
Build ${{ matrix.pkg.name }} ${{ matrix.cpu.platform }}	1s
Build with the C++20 standard	1s
Check Completion	1s
Run unit tests	22m 3s
Lint	28m 33s
Build the Wireshark dissector (ubuntu-latest)	43s
Formatting Check	1m 34s
Build CPP Client on Windows x86	15m 29s
Build CPP Client on Windows x64	15m 29s
Build with the C++20 standard	5m 30s
Build Alpine x86_64	9m 14s
Build Deb x86_64	9m 12s
Build RPM x86_64	8m 53s
Build CPP Client on macOS with static dependencies	7m 14s
Check Completion	1s
	2h 38m 8s

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