Tweaked fix for refs #23946; thanks Claude.
Marked some tests as expected failures on Oracle/cx_Oracle<=5.1.3/Python3

Refs #23843 which is really a cx_Oracle bug
Fixed #23768 -- Rewrote template tests as unit tests.
Fixed "no such test method" error in template_tests.

Without this patch, you couldn't run an individual test
case in template_tests.

Refs #23768
Fixed #23935 -- Converted decimals to fixed point in utils.numberformat.format
Fixed #23950 -- Prevented calling deconstruct on classes in MigrationWriter.
Fixed #20392 -- Added TestCase.setUpTestData()

Each TestCase is also now wrapped in a class-wide transaction.
Refactored some tests to take advantage of refs #20392.
Fixed #23939 -- Moved session verification out of SessionAuthenticationMiddleware.

Thanks andrewbadr for the report and Carl Meyer for the review.
Added a test to verify headers set by default middleware; refs #23939.
Removed redundant numbered parameters from str.format().

Since Python 2.7 and 3.1, "{0} {1}" is equivalent to "{} {}".
Fixed typo in docs/ref/request-response.txt.
Refs #18586 -- Split up model_inheritance.ModelInheritanceTest
Converted recently refactored templates tests to SimpleTestCase.

These test methods don't need DB setup/teardown.

Refs #23768 and b872134b.
Documented a current limitation of multiple table annotation; refs #10060.
Fixed a typo in aggregation docs.
Fixed typo in aggregation docs link.
Fixed #23911 -- Added support for buffer file uploads in the test client
Fixed #23920 -- Fixed MySQL crash when adding blank=True to TextField.

Thanks wkornewald for the report and Markus Holtermann for review.
Refs #18586 -- Split up order_with_respect_to tests