Update optimization policy type

Update optimization policy type

Per work with Optimization team, identifying common attributes for matchable
optimization policies.

Fixed TOSCA syntax errors - use map instead of list.

Removed identity from PciPolicy, QueryPolicy and OptimizationPolicy.

Added example of how vCPE policies now look.

Updated the example for HPA Policy based on Ruoyo input. Fixed syntax
errors due to JSON conversion. Trailing spaces.

Added back in list for applicableResources and required scope attribute
for example policies.

Issue-ID: POLICY-1899
Change-Id: Ic8ae6db0575fb21fca6103ab2ed015c8524def80
Signed-off-by: Pamela Dragosh <pdragosh@research.att.com>