added unit tests and fixed JS tests

added bok choy tests

fixed broken botchoy tests

fixed course discovery broken test

removed monkey patch at class level

changes after feedback from matte

* added certificate template model
* added certificate template asset model
* added django admin configs and migration
* initial LMS template matching logic
* improved LMS template matching
* improved LMS template matching and rendering logic
* address Django admin form/model load order incongruence
* add missing unique constraint migration.

* asadiqbal08/SOL-1058: Add edx-organizations to certificate web view
  * Support organization logo asset management
  * Remove organization fields from Studio certificate configuration model

* SOL-981 pull request feedback fixes