Move all smarty and path settings into the Smarty Extended class
the include files <admin|frontend>_set_paths.php and <admin|frontend>_smarty.php
are deprecated.
For special frontend smarty (which will be not used in future anyway) a
dedicated sub class to Smarty Extended with its own methods should be
created
Login class checks if AJAX_PAGE is set to true and then does not print
the login html to the screen directly, but returns it in the _POST array
login_html, _POST action is set to login
It also resets _POST & _GET arrays before hand to avoid any misuese.
All _SESSION array access needs to be checked in any following class as
the _SESSION is unset in this moment
html element should be overwritten with this JS:
document.getElementsByTagName('html')[0].innerHTML =
data.content.login_html;
Basic: recusrive array search has correct parameter declarations &
checks for null/empty/not string
IO: all unset are removed and null or init to array is used to reset
Update for other include pages with some missing default data
DB\IO dbReturn method has a third parameter to set read only assoc and
not number data from the query
Install basic composer for trying out psalm
setting phpan/phpstan for basic static checking and do basic clean up on
all of the files
Because .inc style is deprecated and also dangerious as often not setup
correctly on the server all .inc files have been renamed to .php files.
All internall calls have been udpated.
