docs: Consolidate LICENSE and PATENTS clauses into Apache 2.0

[dblythy]

New Pull Request Checklist

• I am not disclosing a vulnerability.
• I am creating this PR in reference to an issue.

Issue Description

Closes: #893

Approach

TODOs before merging

• Add tests
• Add changes to documentation (guides, repository pages, in-code descriptions)
• A changelog entry

[parse-github-assistant]

Thanks for opening this pull request!

• 🎉 We are excited about your hands-on contribution!

[codecov]

Codecov Report

Patch and project coverage have no change.

Comparison is base (563be8c) 38.68% compared to head (ab01c81) 38.68%.

❗ Current head ab01c81 differs from pull request most recent head 2789a3c. Consider uploading reports for the commit 2789a3c to get more accurate results

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #894   +/-   ##
=======================================
  Coverage   38.68%   38.68%           
=======================================
  Files          56       56           
  Lines        3278     3278           
=======================================
  Hits         1268     1268           
  Misses       2010     2010           

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[mtrezza]

Looks good!