Generate documentation with DocC

[chris-araman]

Required before merge:

• Xcode 13 released
• Need to address the URL rewriting rules required by the .doccarchive

[codecov]

Codecov Report

Merging #6 (e727116) into main (4fdad37) will not change coverage.
The diff coverage is n/a.

❗ Current head e727116 differs from pull request most recent head 3ed7f5e. Consider uploading reports for the commit 3ed7f5e to get more accurate results

@@           Coverage Diff           @@
##             main       #6   +/-   ##
=======================================
  Coverage   97.99%   97.99%           
=======================================
  Files          30       30           
  Lines        1447     1447           
=======================================
  Hits         1418     1418           
  Misses         29       29           

Flag	Coverage Δ
iOS	97.99% <ø> (ø)
mac-catalyst	96.95% <ø> (ø)
macOS	97.99% <ø> (ø)
swift5.1	97.97% <ø> (ø)
swift5.2	97.99% <ø> (ø)
swift5.3	97.99% <ø> (ø)
swift5.4	97.99% <ø> (ø)
swift5.5	96.95% <ø> (ø)
tvOS	97.99% <ø> (ø)
watchOS	97.99% <ø> (ø)

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