combineReplFromListToMatr: Combine replicates from list to matrix
Description
Suppose multiple measures (like multiple chanels) are taken for subjects and these measures are organized as groups in a list,
like muliple parameters (= channels) or types of measurements (typically many paramters are recorded when screeinig compounds in microtiter plates).
Within one parameter/channel all replicate-data from separate list-entries ('lst') will get combined according to names of list-elements.
The function will trim any redundant text in names of list-elements, try to isolate separator (may vary among replicate-groups, but should be 1 character long).
eg names "hct116 1.1.xlsx" & "hct116 1.2.xlsx" will be combined as replicates, "hct116 2.1.xlsx" will be considered as new group.