Add Quality flag for cloud mask

[g4brielvs]

Bit 0: Day/Night 0: Night 1: Day Bits 1-3: Land/Water Background 0: Land & Desert 1: Land no Desert 2: Inland Water 3: Sea Water 5: Coastal Bits 4-5: Cloud Mask Quality 0: Poor 1: Low 2: Medium 3: High Bits 6-7: Cloud Detection Results & Confidence Indicator 0: Confident Clear 1: Probably Clear 2: Probably Cloudy 3: Confident Cloudy Bit 8: Shadow Detected 0: No 1: Yes Bit 9: Cirrus Detection (IR) (BTM15 - BTM16) 0: No cloud 1: Cloud Bit 10: Snow/Ice Surface 0: No Snow/Ice 1: Snow/Ice