keyboard grammar does not hold a series of modifier keys

[LexiconCode]

Describe the bug Keyboard command with the hold/release modifier for a series keypresses is not recognized is not a valid command. The modifier key combos are not included in the button_dictionary_1. Some thought will have to begin how to include them whether it's in button_dictionary_1or something else.

To Reproduce Steps to reproduce the behavior (be sure to include the exact command phrase you are using): Test case 1

1. Start the test engine
2. Say 'hold control shift'
3. command not recognized

Test case 2

1. Say 'control shift'
2. command recognized

Expected behavior hold modifiers should work as expected

There are issues modifying command as the following:

        "<hold_release> (<modifier> | <button_dictionary_1>)":
              R(Key("%(modifier)s | %(button_dictionary_1)s:%(hold_release)s"),
              rdescript="%(hold_release)s button: %(button_dictionary_1)s"),             

• modifier choice objects to be valid keypresses would need the character - removed
• Duplicate single modifier keys between button_dictionary_1 and modifier
• Passing the correct keys to rdescript with optional (<modifier> | <button_dictionary_1>) choice objects

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