Refactor out the "Data Normalization" modules into a sub library

[recursion-ninja]

The data normalization modules are currently awkwardly shoved into random places in Bio as sub-modules. Their locations should be much clearer and placed in a collective spot. We will make a pcg-data-normalization sub library for this purpose.

We need to move these modules:

• Bio.Graph.Forest.Parsed -> Data.Normalization.Topological
• Bio.Metadata.Parsed -> Data.Normalization.Metadata
• Bio.Character.Parsed -> Data.Normalization.Character

We should probably rename the type-classes to something like:

• getNormalizedTopology
• getNormalizedMetadata
• getNormalizedCharacters

[Boarders]

This issue is now closed here: https://github.com/amnh/PCG/commit/e468b577994595c768086a61188f36a444fc4f3c.