v5.0 Beta 8 Integrating Consditional CF7 groups

This release integrates the Conditional Fields for CF7 plugin [group] tags into the UI editor.

• Field cells (columns in rows) can now have a group tag associated with their inner HTML structure. This is indicated with a dotted border line around that cell, as well as a crossed 'eye' (visible) dashicon into the column controls.
• [group] tags added into the HTML editor are associated with the closest parent <div> in the UI editor and stripped from the code in order not to interfere with the UI layout.