TLE-11 Enhanced Linkd

Change java docs for constructors
TLE-13 Bridge Discovery

Added util function and test
to manage bridge mib object
TLE-13 Bridge Node Discovery

Added Utils for managind BridgeDesignatedPort
TLE-13 	Bridge Node Discovery

Added bridge node Discovery
Created collection for StpTable,
dot1dTpFdbTable and dot1qTpFdbTable
Added HasExtraComponents interface which allows IViewContribution
components to add extra controls to the UI. Added a CheckboxGenerator
that will generate a checkbox column and track selections on that
column.
TLE-9 Topology Object Model and Dao

Added update method for ElementIdentifier
Updated also the TopologyDaoInMemoryImpl
Merge branch 'master' into features/linkd-scalability