BUG-1287: migrate pcep-topology-provider

-fixed config tests
-ParserToSalTest uses AbstractDataBrokerTest

Change-Id: I93f20d32cce9fbd6dead2a0b181d4852f41181db
Signed-off-by: Robert Varga <rovarga@cisco.com>
Signed-off-by: Milos Fabian <milfabia@cisco.com>
Merge "BUG-1287: migrate pcep-topology-provider"