Add ZProgressView submodule

Signed-off-by: Jai Govindani <jai@zodio.com>
Update ZProgressView submodule to latest commit

Signed-off-by: Jai Govindani <jai@zodio.com>
Update progress view class and add support for minimum video duration

Signed-off-by: Jai Govindani <jai@zodio.com>
Update example project to use minVideoDuration

Signed-off-by: Jai Govindani <jai@zodio.com>
Code cleanup

Signed-off-by: Jai Govindani <jai@zodio.com>