Implement `get_hist_total`

[IsaccBarker]

Fixes #15.

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Added database tests by way of running a SEIR model and checking the lengths of the returned Numpy arrays dates, states, and counts to make sure they are of the correct length.

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We expose geting the database from models with the getDb function.

We expose getting historical totals from databases with the getHistTotal function, which returns a dictionary of dates, states, and data (counts).

We expose getting the name of a model with the getName function.

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Added a graph to the example in the qmd file. This pulls a generated graph from the README_files directory.

[IsaccBarker]

For reference, a generated graph. I made the y-axis logarithmic because I felt it visualized things better, but if this is unacceptable let me know. Also, the y-axis is labeled count. I assume there's a better label, but I'm unsure as to what it might be.

[gvegayon]

Awesome job! Notice there's a lot of files that should not be included, namely, all the HTML stuff it is only used for pre-view the HTML version of the README.md file.

[gvegayon]

For reference, a generated graph. I made the y-axis logarithmic because I felt it visualized things better, but if this is unacceptable let me know. Also, the y-axis is labeled count. I assume there's a better label, but I'm unsure as to what it might be.

Looks great! I would keep the "regular scale" and perhaps remove the susceptible cases only.

[IsaccBarker]

Awesome job! Notice there's a lot of files that should not be included, namely, all the HTML stuff it is only used for pre-view the HTML version of the README.md file.

Sorry about that; I generated an HTML report and must have forgotten to remove that data. Will remove.

[IsaccBarker]

Graph sample

[gvegayon]

The Codacity statement seems to be a common issue: https://github.com/fossasia/query-server/issues/332.