Platform features to support Scenario: Group-writable components, Save All in dialog

This pull request addresses nasa/mct#115 and nasa/mct#105

A "Save All" option is added to dialogs shown when views are switched (in cases where there are nested component changes)

TelemetryDisciplineComponent is modified to expose a "Group" capability, and existing policies for ownership are modified to recognize this capability (and allowing ownership-style changes when the current user is within the object's Group)

Wrote or re-wrote unit tests (Y/N): Y
Ran entire suite of unit tests successfully (Y/N): Y
Verified bug fix with the replication steps in JIRA  or verified the implementation meets the requirement cited in JIRA (Y/N): Y
Code coverage requirements satisfied (new code=80%, changed code=at least as high as existing) (Y/N): Y
Code review date and attendees: Review by pull request
Describe potential impact on other areas of the code: Discipline components, view switching
Describe any test prerequisites for this fix (e.g., restart the database): Use Scenario deployment DB or similar setup to verify Group writability
For bugs marked "Regression - Yes", describe the cause of the regression: N/A
Did you modify any pom.xml file? If yes, did you get approval from QA and PM? N