Feature: #62242 - ActionMenuItemGroupViewHelper

See Issue #62242

Description

Using this ViewHelper, OptGroups can be used in the backend select field, which controls which action is selected.

Impact

The new ViewHelper can be used in all new projects. There is no interference with any part of existing code.

Examples

Usage example:

<f:be.menus.actionMenu>
        <f:be.menus.actionMenuItem label="Default: Welcome" controller="Default" action="index" />
        <f:be.menus.actionMenuItem label="Community: get in touch" controller="Community" action="index" />

        <f:be.menus.actionMenuItemGroup label="Information">
                <f:be.menus.actionMenuItem label="PHP Information" controller="Information" action="listPhpInfo" />
                <f:be.menus.actionMenuItem label="Documentation" controller="Information" action="documentation" />
                <f:be.menus.actionMenuItem label="Hooks" controller="Information" action="hooks" />
                <f:be.menus.actionMenuItem label="Signals" controller="Information" action="signals" />
                <f:be.menus.actionMenuItem label="XClasses" controller="Information" action="xclass" />
        </f:be.menus.actionMenuItemGroup>
</f:be.menus.actionMenu>