Added Clipboard read\write retry attempts on failure

[LexiconCode]

Clipboard read\write retry attempts on failure

Description

Windows clipboard is a shared resource and can be locked by an application at any moment.

Related Issue

Should address #657 OpenClipboard: Access denied

Motivation and Context

On failure the clipboard limited loops read write until success.
These changes could be integrated directly into dragonfly. Eliminating the need for these modifications.

https://github.com/dictation-toolbox/dragonfly/blob/7018e5c1c5c4249e8ec1ae47d12505f2bfd02764/dragonfly/actions/action_paste.py#L103
https://github.com/dictation-toolbox/dragonfly/blob/master/dragonfly/windows/clipboard.py

How Has This Been Tested

Needs to be tested with a broader audience given the rarity of the bug.

Types of changes

• Bug fix (non-breaking change which fixes an issue or bug)

Checklist

• I have read the CONTRIBUTING document.
• My code follows the code style of this project.
• I have checked that my code does not duplicate functionality elsewhere in Caster.
• I have checked for and utilized existing command phrases from within Caster (delete if not applicable).
• My code implements all the features I wish to merge in this pull request.

Maintainer/Reviewer Checklist

• Basic functionality has been tested and works as claimed.
• New documentation is clear and complete.
• Code is clear and readable.

[LexiconCode]

If there is no feedback from the community this will merged in 48 hours.

[alexboche]

Just mentioning a related issue #609 which is about pause times for copying (and less importantly, pasting) to the clipboard.