Getting github actions CI working (#412)

* Update ci_testing.yml

* Added flag to not activate base

* Added default to bash shell

* Update ci_testing.yml

* Removed os walk to get data dir

* Add submodule checkout

* Run ctest in build directory

* Added build matrix

* Disabled fast-fail

* Axe python 3.6 build

* Adding coveralls step

* Switching to codecov.io

* Axed Travis and added Python coverage

* Added pytest-cov

* Only upload coverage once

* Testing adding windows

* Disabled windows pytest for now

* Testing different Python component

* Removed windows CI for now

* Trigger on push