added classification enums to qp

[ESadek-MO]

🚀 Pull Request

Description

Added some convenience enums to quickplot, to supplement #6247.

from iris.quickplot import Classification

qplt.contour(cube, footer=Classification.official_sensitive)
iplot.show()

Which offers more consistency than:

qplt.contour(cube, footer="Official-Sensitive")
iplot.show()

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 89.78%. Comparing base (010389c) to head (24e5f6a).
Report is 85 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #6346   +/-   ##
=======================================
  Coverage   89.78%   89.78%           
=======================================
  Files          90       90           
  Lines       23548    23554    +6     
  Branches     4391     4391           
=======================================
+ Hits        21143    21149    +6     
  Misses       1662     1662           
  Partials      743      743           

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[trexfeathers]

iris/docs/src/conf.py

Lines 201 to 211 in 8fa0cdb

	# sphinx.ext.autodoc configuration --------------------------------------------
	# https://www.sphinx-doc.org/en/master/usage/extensions/autodoc.html#confval-autodoc_default_options
	autodoc_default_options = {
	"members": True,
	"member-order": "alphabetical",
	"undoc-members": True,
	"private-members": False,
	"special-members": False,
	"inherited-members": True,
	"show-inheritance": True,
	}

-    "inherited-members": True
+    # Enums are most valuable when documented as concisely as possible.
+    "inherited-members": "Enum,IntEnum,ReprEnum,StrEnum",

https://www.sphinx-doc.org/en/master/usage/extensions/autodoc.html#directive-option-autoclass-inherited-members