Statistics rework

[douweschulte]

• Show separate statistics for all ion types (a/b../glycan/..) (think about how to show, maybe hide at first and be able to open later (SJ)
• Show separate statistics for all ambiguous things (AA/mods/..) with the support for each option per ambiguous object outlined
• Look into and calculate some scoring types based on the already calculated statistics (JS)
• Show FDR, but think about if it is neccessary to do this as a separate task after annotation as the FDR can take some time to be calculated, also see if this can be done for each separate peptide separately