Add official datasets adapted for compatibility with CCODWG datasets

[jeanpaulrsoucy]

Several provinces offer datasets (e.g., CSV files) that we do not use as direct inputs into our dataset. For example, the Ontario and BC datasets use different date schemes than our dataset, rendering them incompatible with our universal date scheme, which is public reporting date.

This addition will solve many previously discussed issues, such as #44 by allowing official datasets to serve as drop-in replacements for portions of our dataset.

The following datasets will be adapted for compatibility with the CCODWG datasets (additional datasets may added later):

• PHAC - situational awareness dashboard
• Ontario - confirmed cases
• British Columbia - case data
• Alberta - cases in Alberta
• Saskatchewan's Dashboard - Total Cases
• Saskatchewan's Dashboard - Total Tests
• Quebec - cases, testing

[jeanpaulrsoucy]

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