Bug 24835 - Bug 24050 - refactor the pip uninstall and revise the pbtools pseudoname handling

[git-p4: depot-paths = "//depot/software/bioinformatics/tools/GenomicConsensus/": change = 132262]
       Add new, more robust P5-C3 training

       [Bug 24899]

[git-p4: depot-paths = "//depot/software/bioinformatics/tools/GenomicConsensus/": change = 132735]
       Add note to CHANGELOG about P5-C3 improved robustness

       [Tracking bug 24842]

[git-p4: depot-paths = "//depot/software/bioinformatics/tools/GenomicConsensus/": change = 132743]
Spiff up the README

[Tracking bug 23893]