[BUGFIX] Implemented TeaserViewHelper

Renamed ValueViewHelper to NodePropertyViewHelper and replaced CropViewHelper with TeaserViewHelper

Sprint: 2013-34

Change-Id: I9b5c07d0f58d44e84418c7ee898873513594bf7b
[TASK] Done upgrading Lelesys.Plugin.Products package

Done upgrading Lelesys.Plugin.Products package.

Relates: #18278
Sprint: 2014-07 (Feb 10 - 15)

Change-Id: I08329614534838cbe87507bde5be8b2ce3f4a621