Add repairability to the inventory catalog

[dchanman]

The motivation for this is part of DMTF/Redfish-Use-Case-Checkers#62, where we'd like to create a usecase checker for assigning location-based identifiers for replaceable components in a system.

The motivation for that Usecase Checker is to help codify the Google repair identifier requirements documented in https://github.com/google/ecclesia-machine-management/blob/master/ecclesia/lib/redfish/g3doc/topology.md

Signed-off-by: Derek Chan [email protected]

[mraineri]

Closing for the time being

[dchanman]

Note for future review: line 203 should be

if replaceable is not None:

because if Replaceable: False, we don't want it to check the LocationType field.