Andreas Kienast authored Jan 03, 2019 and Frank Nägler committed May 24, 2019

This patch refactors the IRRE handling on client side, the JavaScript
land has been rewritten to have a better structure and do less repeating
on-the-fly calculations. Each IRRE container is represented by a
independent instance of InlineControlContainer.

Most of the internally used `scriptCall` directives have been removed.
Currently, `scriptCall` can't get removed completely, as further
refactorings in different areas are required.

All of the "external" communication via `inline.foobar()` has been
replaced by a event-driven approach. This also affects ElementBrowser
windows, those use a minimalistic API based on postMessage.

Some code that was never evaluated in ElementBrowser is considered dead
and has been removed regarding inserting multiple items.

A new sorting library has been added in order to replace jqueryui piece
by piece.

Executed command:

    yarn add --dev sortablejs

On PHP side, some code has been removed as well since the rewritten client
code is event-based and doesn't depend on external calls anymore.

Resolves: #88182
Releases: master
Change-Id: I4176483d2882cef49fbaddb5e2e1914c1f76c908
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/59324


Tested-by: TYPO3com <noreply@typo3.com>
Tested-by: Georg Ringer <georg.ringer@gmail.com>
Tested-by: Frank Naegler <frank.naegler@typo3.org>
Reviewed-by: Georg Ringer <georg.ringer@gmail.com>
Reviewed-by: Frank Naegler <frank.naegler@typo3.org>