Added new exif tags

New exif tags:
0xA500 : "Gamma"
0x8827 : "PhotographicSensitivity"
0x8830 : "SensitivityType"
0x8831 : "StandardOutputSensitivity"
0x8832 : "RecommendedExposureIndex"
0x8833 : "ISOSpeed"
0x8834 : "ISOSpeedLatitudeyyy"
0x8835 : "ISOSpeedLatitudezzz"
0xA430 : "CameraOwnerName"
0xA431 : "BodySerialNumber"
0xA432 : "LensSpecification"
0xA433 : "LensMake"
0xA434 : "LensModel"
0xA435 : "LensSerialNumber"
0x001F : "GPSHPositioningError"