Bug fixed how to calculate SCT Coverage DQ histogram
There is a bug that SCT DQ coverage histogram cannot consider all errors. We found that the problem is "isGood" function in "summarySCT" which lists error modules. Although it is investigating why isGood returns true, we decided not to use isGood so far when we calculate coverage.
I added code to clear a error module list once in errorSCT and then to add by each error case.
This modified may affect to only SCT DQ histogram, not to reconstruction etc.