Fixes #8179 - extraButtonLock and extraButtonPassword might be specified without a value or with 0 or with 1.

Refs #8204. Copy requiredPosition from Form to FormElement has been moved from 'formElementSetDefault()' to 'copyAttributesToFormElements()'

Fixes #7864. 'required'-FE Elements, deactivated via formModeGlobal=requiredOff, now gets class 'required-field'. The final 'required' mode is still temporarily disabled.

Refs #7743. Detection of 'pattern error' on per QFQ default, custom instance wide, per form or per FormElement - per FormElement overwrites other. System specific generated overwrites QFQ static default, instance wide default. Move default pattern to constants.

Fixes #7620. Label align left/center/right. Defined by config/form/formelement. FormEditor slightly redesigned.

Feature #6314 - HTML Mode & sendMailSubjectHtmlEntity for Forms. Also fixed some issues with Documentation and implementation.

HelperFormElement.php, SessionCookie.php, Html2Pdf.php, Store.php, Constants.php: migrate to camel case on configuration variables.
Config.php: readConfig() reads now config.qfq.ini and T3 LocalConfiguration.php.

HelperFormElement.php: AppendFormElementNameImageCut()
Support.php: Force Sanatize Class fuer FE.type=imageCut.
AbstractBuildForm.php: Add source filename to SIP
QuickFormQuery.php: Call $save->processAllImageCutFE();
Save.php: processAllImageCutFE(), extractImageDataReplaceFile()

Bug #5031 / Missing details in DbException: New definition of SYSTEM_SHOW_DEBUG_INFO: even after config.qfq.ini is parsed and SIP Infos has been read - if there is no BE User logged in, the value stays on 'auto' (earlier it has been replaced to 'no'). Staying on 'auto' keeps the information that replacing is still open and not replaced means 'no'-BE User logged in.

* Broken Redirect after Save - fixed
* Broken same HTML ID for FE copies in a template group. - fixed

#4386 Fuer GRC: Optional Info Button bei 'input' wie bei 'textarea' - EXTRA_BUTTON_INFO_POSITION=below
Manual.rst: update doc for EXTRA_BUTTON_INFO_POSITION.
HelperFormElement.php: honor setting of EXTRA_BUTTON_INFO_POSITION.

Support.php: wrapTag() extend to wrap multiple tags.
AbstractBuildForm.php: wrap thead in subrecord header.

#4278 / Language: Check that language settings respect inside of container / pill / fieldset / templateGroup
HelperFormElement.php,AbstractBuildForm.php,BuildFormBootstrap.php,QuickFormQuery.php: function setLanguage() moved from QuickFormQuery.php to HelperFormElement.php

Manual.rst: how to use the multi language forms.
DatabaseUpdateData.php: Update DB with new language fields.
HelperFormElement.php: modify explodeParameter() to not check already existing definitions.
QuickFormQuery.php: new setLanguage().

FormAction.php: get templateGroup.maxLength (=maxCopies) via a generic function.
HelperFormElement.php: new tgGetMaxLength()
FillStoreForm.php: fixed a broken if statement. Use of new tgGetMaxLength() function.

Database.php, QuickFormQuery.php: Initializing of native FormElements: _tgIndex
HelperFormElement.php: new function formElementSetDefault(). Add '%d' to id's of extraButtonInfo text elements.
Manual.rst: minor typos fixed

Manual.rst: added documentation for new config.qfq.ini variables GFX_EXTRA_BUTTON_INFO_INLINE, GFX_EXTRA_BUTTON_INFO_BELOW.

Implemented: date,time,datetime,editor,radio,select,upload

Implemented Checkbox

Manual.rst: update doc how to insert/update/delete non primary templateGroup records.
FormAction.php: removed $templateGroupIndex - solved implicit by defining a LIMIT on 'slaveId' . Implemented '%D' (one below %d). Implemented FE_SQL_HONOR_FORM_ELEMENTS - reduces unecassary SQL queries.
HelperFormElement.php: moved function 'explodeTemplateGroupElements()' to 'QuickFormQuery.php'
Database.php: remove call to explodeTemplateGroupElements() - not necessary at that place.
QuickFormQuery.php: fill STORE_RECORD during Formload - to read templateGroup records very early. Local copy of `getNativeFormElements()`, new `explodeTemplateGroupElements()`

''abel' and 'note' are fixed - 'value' is still not updated, open.
HelperFormElement.php: buildFormElementName() had some issue if there was no $formElement[FE_NAME] defined. New workaround: take the $formElement[FE_ID] instead.
AbstractBuildForm.php: creation of JSON has been missed - now fixed. The $value is rendered (recent value), but probably the client is not prepared to update a non-HTML-input field. This has to debug with RO.