added HFR video support

Change-Id: I3c2cdc88a965fb7bc6a16c7c4936b6ce947d764c
added normal focus mode

Change-Id: Ie0043a7345c6e58b7a37f9fc3bc6275191aa8fc1
allow overriding all settings

Change-Id: I928f121bdde4f38665d9317392b6d1ffd26ecc33
make flash mode independent from scene mode

Change-Id: I1695e893df2234e7ffc9653be127c9cc0c153548