Update app skeleton to 2.3

Signed-off-by: crynobone <crynobone@gmail.com>
Remove src folder and utilze app folder instead.

Signed-off-by: crynobone <crynobone@gmail.com>
Fixes testcase.

Signed-off-by: crynobone <crynobone@gmail.com>
fixes code coverage option.

Signed-off-by: crynobone <crynobone@gmail.com>
Merge pull request #18 from orchestral/feature/2.3

Upgrade to Orchestra Platform v2.3.0-dev