[misc] Add usecase for networkbearerselection

- Fail Reason: the requestRouteToHost method is implemented incroccet

Impacted tests(approved): New 1, Update 0, Delete 0
Unit test platform: [Tizen IVI]
Unit test result summary: Pass 0, Fail 1, Block 0
you don't need to add extra order: "1.", "2.", as <ol><li> has done this.