lirc-lsplugins: Quote some YAML output.
lirc-lsplugins: Quote some YAML output.

The YAML parser is unhappy with more complicated shell commands in
the device_hint string. Write string as a double-quoted string,
quoting all \ to \\. The more YAML-friendly single quoting doesn't
work since "'" is part of command shell commands.

Also adds the info string to the generated output.

stb-tester/lirc,stb-tester/lirc,stb-tester/lirc,stb-tester/lirc,stb-tester/lirc,stb-tester/lirc