biosCamera to run directly on a test statistic.

In limma there is the cameraPR function to run it directly on a previously calculated test statistic. It would be great to have this possibility here as well and then get the same nice output table.

Start by locating the existing biosCamera entry point and reviewing limma's cameraPR behavior for previously calculated test statistics. Compare the current output path with the requested cameraPR-style input and table. Done means biosCamera accepts a precomputed test statistic and produces the same kind of output table.

Written by the indexing model from the issue text.