SGP/TSI/C1 - ice storm

An ice storm caused the mirror to freeze so the shadowband was not in the correct 
position.

• count.sky
• region.sun.count.opaque
• region_zenith_count_thin
• percent_thin
• region_sun_count_opaque
• count_sky
• region.zenith.count.opaque
• count_opaque
• count.opaque
• percent_opaque
• sun_strength
• region.zenith.count.thin
• count_thin
• count.thin
• sunny
• percent.opaque
• region.sun.count.thin
• region_sun_count_thin
• sun.strength
• percent.thin
• region_zenith_count_opaque