feat: introduce qtkeychain and cmark modules

This change allows Neochat to be built against custom versions of these 3rd party dependencies.
2 jobs for master in 2 minutes and 54 seconds (queued for 224 minutes and 41 seconds)
Status Job ID Name Coverage
  Test
passed smoke-test #84005

00:02:18

passed unit-test #84004

00:00:36