core/capabilities: Enable other codecs when RemoteFX is used

CARDP_CAPS_CAPTURE_NON_CAC tells the server to send other codecs as well if RemoteFX is used. This
should be on per default and only be disabled if RemoteFxOnly is set (eg when capturing a RemoteFX
session).
Merge pull request #1160 from bmiklautz/othercodecs

core/capabilities: Enable other codecs when RemoteFX is used