OLI/MET/M1 - Reprocess: Wind data spikes

Sporadic wind speed spikes of 7999 m/s (and corresponding wind directions of 135.3 
degrees) should be ignored. They are actually missing data values.

• Wind speed vector mean(wspd_vec_mean)
• Wind direction vector mean(wdir_vec_mean)
• Wind direction vector mean standard deviation(wdir_vec_std)
• Wind speed arithmetic mean(wspd_arith_mean)