apps/examples/camera: Support for Camera control & format
apps/examples/camera: Support for Camera control & format

- Options to set various camera controls
- Options to set various format and frames
- Options to set various frame intervals
- Code cleanup
- Fix invalid index ranges for all formats, frames & frame intervals
- Help string aligment

Change-Id: I023193aa9589223f331a188acdaaff07fdea6680
Signed-off-by: Siju Cherian <f4592744917db8408c9393ae05589111c3c6aa34@samsung.com>

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