[FEATURE] Add new content view controller

[cemsafa]

• [ ] Users can shoot a photo
• [ ] Users can shoot a video
• [ ] Users can modify photo/video before submitting
• [ ] Users can choose previous photo/videos from photo album
• [ ] Users can write caption
• [ ] Users can tag people

[JanakiramGupta-17213]

Covered sub-tasks

Users can shoot a photo Users can modify photo before submitting Users can choose previous photo from photo album Users can write caption