Stabilize output of `string(::Benchmark)`

[jonas-schulze]

I like to use the Stringified benchmark as a directory name together with DrWatson.jl. Therefore, as to not recompute data if not necessary, the output of string¹ should not change in between compatible versions of MORWiki.jl.

Currently, the output might contain the prefix MORWiki. if a benchmark type has not been imported into local scope. Find a way to remove the module name from the output.

Footnotes

1. What about repr? Do I need a package extension for DrWatson.savename? ↩