Caelum development snapshot before nasa/cFE#1203

nasa/cFE#1203 is a breaking change.
This tag is reference point for users not ready to move to the new cFE directory structure.

Add nasa/osal#587 and nasa/cFE#853 (nasa#149)

Combine
- nasa/osal#587
- nasa/cFE#856

Release Candidate 1 for the upcoming cFS-Bootes release

Official release - Aquila

Integration Candidate: 2020-05-27 (nasa#96)

* Fix nasa#92 - Update lgtm.yml file to exclude Ui files

* Update sample_app to reflect HOTFIX

* Update cFS-GroundSystem to reflect HOTFIX

* Add osal PR#495 to fix race condition

* Update sample_app to reflect unit test HOTFIX

* Update submodules to master for IC-2020-05-27

Co-authored-by: lbleier-GSFC <[email protected]>
Co-authored-by: Jacob Hageman <[email protected]>

Enforc strict cppcheck in CI

Release candidate version for build verification

None-production ready

Update submodules to master branch