ci: travis: bring back default and wayland builds
With some recent changes we only had builds running after a push which
did not qualify for a make check / ninja test run. Mostly due to problems
with the tests and specific config options. Bring back a default build
which will also run the unit tests un every push.
Also adding back a dedicated wayland build due to conflicts of gl
versions with the all options enabled build.
Reviewers: bu5hm4n, zmike
Reviewed By: zmike
Maniphest Tasks: T7545
Differential Revision: https://phab.enlightenment.org/D7727