Fix call volume typo in documentation.

Add a manual test for checking device changed by doing manual OS updates.
It can be run with options `--all --suite "Audio Routes --test "Simple call with real audio devices reload"`
Add 2 tools function to detect volumes on record/playback.
Move usable functions into global headers to avoid future code duplications: check device name and id.
For tester, fix missing entitlements in plist to access microphones.