Enable wrt::RunnableWidgetObject tests

Enable wrt::RunnableWidgetObject tests

[Issue#]       LINUXWRT-142
[Bug]          Wekbit part cannot be initialized several times in one process. Mock for IViewModule is needed. Additionally mock for ConextManager is needed now.
[Cause]        N/A
[Solution]     Create mock for IViewModule and newly created IContextManager. Check actual correct path of execution (graphs are correct).
[Verification] Run: wrt-tests-general --output=text. All should pass.
Additionally, build web-provider rpm for private environment check if package was built and check if web-provider binary can be runned (with ldd -r or ld)
Check if wrt-client renders widgets correctly (run any).

Change-Id: Ib261bbfdaa08d91f322c700f49ed735512e535aa