Some more gestures for Albatross

[burmancomp]

Link to issue number:

none

Summary of the issue:

Added some gestures.

Description of user facing changes

Added following gestures:

• | Cycle the braille show messages mode | f1+f2, f9+f10 |
• | Cycle the braille show selection state | f1+f5, f9+f14 |

Description of development approach

none

Testing strategy:

Tested with 80 cells model.

Known issues with pull request:

none known

Change log entries:

New features
Changes
Added gestures for cycling the braille show messages mode, and the braille show selection state.
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.

[AppVeyorBot]

• PASS: Translation comments check.
• PASS: Unit tests.
• PASS: Lint check.
• FAIL: System tests (tags: installer NVDA). See test results for more information.
• Build (for testing PR): https://ci.appveyor.com/api/buildjobs/rjymc34yilxkmacc/artifacts/output/nvda_snapshot_pr15002-28422,5edd965d.exe
• CI timing (mins):
  INIT 0.0,
  INSTALL_START 0.9,
  INSTALL_END 1.0,
  BUILD_START 0.0,
  BUILD_END 26.5,
  TESTSETUP_START 0.0,
  TESTSETUP_END 0.3,
  TEST_START 0.0,
  TEST_END 22.7,
  FINISH_END 0.1

See test results for failed build of commit 5edd965da0

[seanbudd]

Thanks @burmancomp

[Qchristensen]

Docs changes read well, thanks!