[block-library] Adds support for border-control to Quote Block

[Pathan-Amaankhan]

Tracks ticket: https://core.trac.wordpress.org/ticket/57506

What?

• This PR adds support for border-control to Quote Block.
• Due to this users can add custom borders to the quote blocks.

Why?

• As per the discussion done here, as we are not adding support for the wp-block-styles in TT3(twentytwenty-three) theme, we are missing border styles in our quote block.
• So, to resolve this we have decided to add border-control support in our Quote Block. (Please view comment-1 & comment-2 for more information)

How?

• We are adding border-control support to our quote block.
• This way the users will be free to set the border as per their requirements.

Testing Instructions

1. Open a Post or Page in Edit Mode.
2. Insert a Quote Block.
3. We will be having a Border option in Block Settings from where we can update the following border options:
   • color
   • radius
   • style
   • width

Screenshots or screencast

Before	After

Fixes / Closes Issue:

• Quote Block: styles are different between front end and editor #45547

[github-actions]

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