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