Allow Disabling Alarms in a Hierarchy all-at-once

[slominskir]

The current/existing ALH alarm app allows users to disable alarms in a tree-like hierarchy such that all nodes below a given node are disabled all at the same time.

Currently JAWS defines an attribute for each alarm to link a parent alarm such that a dependency hierarchy is formed. However, the original idea was for this hierarchy to represent alarms that are "Masked" by a parent alarm in order to avoid alarm floods. This is a similar and related idea. We need to figure out if the "Masked By" hierarchy is the same as the "Disabled By" hierarchy. I assume both supporting Disabled By and Masked By behaviors are desired, but clarification needed.

Note: We currently have the fields in the database for Masked_By, however, no values have been configured. The JAWS app currently doesn't do anything with alarm hierarchy.

Note: There was a stated goal early on to avoid a graphical hierarchy in the new app. If I'm remembering correctly it was because many/most alarms don't fit into a hierarchy. So we need to support a hierarchy, but not force it on all alarms.

Note: The workaround at the moment is to take advantage of the multi-select ability on the Notifications tab to select multiple alarms at once and then apply the Disable to them all-at-once.

See: #11