Updated the version

[rickecon]

This PR:

• Updates the version in setup.py and ogcore/__init__.py
• Update the copyright year of documentation to 2024
• Adds a CHANGELOG.md file
• Swapped the LICENSE.md for the official CC0-1.0 LICENSE file. This way, the license type shows up on our main page right-hand-side license
• Upgraded and organized the smart tags at the beginning of the README.md and added them to the beginning of the intro.md page of the documentation

cc: @jdebacker

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (42cd461) 80.52% compared to head (1c9f284) 80.52%.

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #898   +/-   ##
=======================================
  Coverage   80.52%   80.52%           
=======================================
  Files          19       19           
  Lines        4452     4452           
=======================================
  Hits         3585     3585           
  Misses        867      867           

Flag	Coverage Δ
unittests	80.52% <100.00%> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

Files	Coverage Δ
ogcore/__init__.py	100.00% <100.00%> (ø)

[rickecon]

@jdebacker. This PR is ready to go.

[rickecon]

@jdebacker. My ogcore-dev conda environment originally had the black package version 23.?.?. I noticed that when I ran it, it had me update two files to which I made no changes: firm.py and txfunc.py. These formatting changes caused those two files to fail the GH Action "Check Black formatting". I noticed in the GH Action log for the "Check Black formatting" tests that it was loading black version 24.1.1.

I deleted my ogcore-dev conda environment and reinstalled it, which produced an environment with the updated black version 24.1.1. Because the old black version 23.?.? gives results that are different from version 24.1.1, I recommend that we set the black version in environment.yml to be >=24.1.1. I have done this in my most recent commit.

[jdebacker]

@rickecon Thanks for this PR. LGTM. Merging.