Fix LT-21976: Merge Create dates when merging entries (sillsdev#334)

* Store the date at the start of the import and use it in entry
  creation. We need to have a consistent date recorded to determine
  if we read a date from the xml data or not.
* Add a function to return the newest date that was actually read
  from the xml data.
* Fix missing disposes in tests

Fix LT-826: overtly order affixes in a template slot (sillsdev#331)

Fix LT-22121: Analysis guesser should not guess ras for rAs (sillsdev…

…#326)

* Fix LT-22121: Analysis guesser should not guess ras for rAs

* Add test case for mixed case words

Version shipped with FieldWorks 9.2.7 Beta

Install 4.6.1 Targeting pack in action to get windows test results (s…

…illsdev#293)

* Do targeting pack install on windows only

Update Checkout and setup-dotnet actions

FieldWorks 9.1.24

FieldWorks 9.1.23

FieldWorks 9.1.22

FieldWorks 9.1.21