#4004 [HHQ-3786] Add additional filtering options to alertdefiniti

[Hyperic Team]

http://jira.hyperic.com/browse/HHQ-3786


With the enhanced alertdefinition sync support in HHQ-3785 it will be required to give the end user more options for filtering the list of alerts returned via the list command.

This bug is to capture those additional filter use cases:

1) Add --platform: This will list all alerts for the given platform, including children. Nice to have would be allowing this to be a substring match.

2) Add --resourceDescription: This will list all alerts for resources with a description that matches the given input. This is useful for situations where the resource description is used to drive the alerting policy. For example, a resource description of "SEV1" could then be used to list out matching resources applying the proper alerting policy for SEV1