[TASK] Implemented News plugin frontend functionality.

Change-Id: If6b3c961c01193829f3ca187311b22fbcb978271
[TASK] Implemented bootstrap carousel for news, refactored code.
[TASK] Done validation for news category, refactored code.
[TASK] Created Aspect for Target node mapping.
[TASK] Changed the path for Aspect Taget Node mapping.
[TASK] Implemented news backend modules and made functionality changes for frontend.

Change-Id: Ibf22ee2e076798bf9aefa8987f84e1b2c5c7c750
[BUGFIX] Fixed add,edit issued for backend news modules.