Interface with TextAnalysis.jl?

[ericphanson]

Document's could be TextAnalysis.StringDocument and Corpus could be TextAnalysis.Corpus?

• This would mean KeywordSearch complements TextAnalysis by providing fuzzy-matching capabilities its StringDocument types and Corpuses of StringDocuments.
• It would also mean that it's easy to do other types of analyses (provided by TextAnalysis) beyond keyword searching on documents loaded into this library, since they would already be TextAnalysis.Corpuses.
• Currently, we allow attaching arbitrary NamedTuple metadata to our documents or corpuses, which I use for storing document UUIDs and corpus UUIDs. This maybe could be upstreamed to maintain the functionality.
• This would also enlarge the dependency tree of KeywordSearch, since we would need to add a dependency on TextAnalysis (https://juliahub.com/ui/Packages/TextAnalysis/5Mwet/0.7.1?t=1).

This would be for the future (not the 0.3 release I want to get out soon).