Molmed/checkQC: New definition of reads per sample and iSeq support

Major changes: New definition of reads per sample Reads per sample are now counted per sample name instead of sample ID. It allows a sample to have multiple libraries in the same lane and still be counted as one sample. For example, in a run with the following sample sheet: Sample_ID,Sample_Name Pool1_1,Pool1 Pool1_2,Pool1 Pool2_1,Pool2 Pool2_2,Pool2 the sum of reads for Pool1_1 and Pool1_2 will be defined as the reads for Pool1. This was not the case in previous versions of CheckQC, where each unique sample ID was considered a sample. Minor changes: Support for iSeq Improved error handling