Fix magnaCritical skill calculation
Fix magnaCritical skill calculation

reported on #162

skillAmounts table missing 'magnaCritical' key
This change was in 2019-04-26 patch.

normalCritical and magnaCritical keys unified to 'critical'
now we need to catch magnaCritical stype.

hoshimi/motocal,hoshimi/motocal,hoshimi/motocal,hoshimi/motocal