* This is a combination of 8 commits.
This is the 1st commit message:

> First WIP version of supporting nested subforms.

This is the commit message #2:

> Fix nested subforms not getting correct name attribute on input fields.

This is the commit message #3:

> Fix subform rows having invalid index, fix small typo.

This is the commit message #4:

> Replace the unique subform id via random bytes by just an increasing integer in the fields type rendering process.

This is the commit message #5:

> Implement feedback from PR at Joomla;
> - Use a <template> HTML element for the template of the subform rows,
>   not a url encoded string inside of a <script> element.
> - Fix code style errors reported by phpcs.
> - Make the fixing of the unique attributes (name, id, etc) of input elements
>   of nested subform rows more errorprone, using the same method as the main
>   subform row.
> - Manually add a minified version of the javascript file.

This is the commit message #6:

> Fix failing javascript tests due to changed structure of subform repeatable template container.

This is the commit message #7:

> Change subform repeatable javascript test to correctly check on
> 0-indexed rows, previously they have been 1-indexed.

This is the commit message #8:

> Fix a problem where multi-level subforms on the same level doesnt trigger their template correctly.
> Additionally added a note why the fixScripts() method is broken and how it could get better.

* Commit code styling errors and add an aria label for the outermost 'add' button.

* Fix double group-add button on repeatable subform type.

…or the joomla core Fixes #6 (joomla#12)

* inital port to the joomla core

* add com_mailto as supported form (requires joomla#20265)

* install & update SQL & mark as core extension

* bump version to trigger drone

* new line & drone

* implement consentbox text based on the work by @brianteeman thanks!

* thanks drone

* new line

* doc block

* rename plugin to ConfirmConsent

* fix inine comments

* typo thanks @sandewt

* implement LanguageAssociations thanks @infograf768

* fix check

* move the update sql's to its own files to avoid merge conflicts

* fix postgresql file

* thanks @infograf768

* fix problems fund by @infograf768

* extend description

* implement modal support thanks @infograf768

* new text thanks @brianteeman

* drone

* add missing period

* thanks @brianteeman

* thanks @Sandra97

* remove Scalar types

* fix association

* fix comments thanks @sandewt

* class var type

* fix language string and us another namesprace

* the 2nd field is package_id

* the 2nd field is package_id

* the 2nd field is package_id

* add com_privacy.request

Joomla 3.9.0 Part #6

…ngle query, reduce 20, 50, 100 queries (page limit) to 1 (joomla#22117)

* Categoy manager, get all counters via single query

* Replace countItems() and countTagItems() methods with a reusuable counterRelations() method in ContentHelper class

* CS

* Since deploy version

* Better ordering for states to property names array

* Coding style (#6)

* Removed unneeded  parameter from counting methods

* CS