ViewRegistryHelper class is moved to Application side

ViewRegistryHelper class is moved to Application side

- ViewRegistryHelper class is only required for the application which uses Dali json theme/style Builder
- ViewRegistryHelper uses C# System.Runtime library and this causes some delay at launching time (ex: KantM board, 300ms delay)
- This is not needed for all application (no need to included in NUI) so it is moved to application side.

Conflicts:
	NUISamples/NUISamples/NUISamples.TizenTV/examples/Main.cs

Change-Id: I5ee38801a1f81991f9d6e76a0cbaa6b59d4a3d4f
Signed-off-by: dongsug.song <dongsug.song@samsung.com>