[WatchManager] No API for watch manager

[mszperna]

Hello,
Native API provides watch manager functionality. It allows to manage watch faces, display and control them. TizenFX does not provide any analogues. More information about watch manager can be found in the file watch_control.h.

TizenFX should provide a WatchManager API that allows a developer to work with watch faces without the need to reference native functions.

Please give this issue a higher priority because it blocks a very important project.

[myroot]

Watch manager API is not for 3rd party application.
TizenFX is a API set for 3rd party application.