Re-Introduce Table SayAll commands

[mltony]

Link to issue number:

Fixes #13469.
Fixes #13927.

Summary of the issue:

Previous PR #13956 broke sayAll functionality in BookWorm (#13927) and therefore was reverted.
This PR undoes reverting, in other words it reintroduces table sayAll commands. It also contains a minor change that fixes sayAll in BookWorm.

Description of user facing changes

Reintroduces table sayAll commands.

Description of development approach

In my original PR #13956 I did a minor refactoring of SayAll classes, in order to avoid code reduplication and have a nice class inheritance. In order to achieve this I slightly rearranged calls to textInfo. This didn't affect functionality anywhere except for page turn detector in BookWorm.
Reverting to the original order of TextInfo calls at the cost of slightly less elegant code.

Testing strategy:

Tested manually with BookWorm and confirmed that pages turn successfully.
Tested on tables in browsers.

Known issues with pull request:

No system testing was performed as runsystemtests.bat script appears to be broken. When trying to run command mentioned as example from https://github.com/nvaccess/nvda/tree/master/tests/system on clean master:

HH) runsystemtests --include chrome --test "starts" ...
Ensuring NVDA Python virtual environment
call py -m robot --argumentfile "H:\mltony\nvda\tests\system\robotArgs.robot" --include chrome --test "starts" ... "H:\m
ltony\nvda\tests\system\robot"
[ ERROR ] Suite 'Nvda & Robot' contains no tests matching tags 'fakeTagToEnforceUsageOfInclude' or 'chrome', not matchin
g tag 'excluded from build' and matching name 'starts'.

Try --help for usage information.
Deactivating NVDA Python virtual environment

Change log entries:

New features

• Added the following table commands:
  • Say all in column: NVDA+control+alt+downArrow
  • Say all in row: NVDA+control+alt+rightArrow
  • Read entire column: NVDA+control+alt+upArrow
  • Read entire row: NVDA+control+alt+leftArrow
    Changes
    Bug fixes
    For Developers

Code Review Checklist:

• Pull Request description:
  • description is up to date
  • change log entries
• Testing:
  • Unit tests
  • System (end to end) tests
  • Manual testing
• API is compatible with existing add-ons.
• Documentation:
  • User Documentation
  • Developer / Technical Documentation
  • Context sensitive help for GUI changes
• UX of all users considered:
  • Speech
  • Braille
  • Low Vision
  • Different web browsers
  • Localization in other languages / culture than English
• Security precautions taken.

[mltony]

cc: @lukaszgo1, @Mohamed00

[Mohamed00]

Can confirm that Bookworm's page turning works properly.

[feerrenrut]

No system testing was performed as runsystemtests.bat script appears to be broken. When trying to run command mentioned as example from https://github.com/nvaccess/nvda/tree/master/tests/system on clean master:

@mltony I think there are a couple of things going wrong here. The example assumes the existence of a test named "starts", since wildcards are accepted this could also be "starts*". The ellipsis was intended to mean "and any other arguments". Happy for a PR to clarify.