Remove unused code and classes.
Clean up code to remove all named constant from them and throw
deprecation alerts if used.
Add basic psalm setup in root folder and remove from www folder
Smarty extended class is now included in checks and is fixed.
Add the lib/ folder to the composer.json autoloader block so we can use
the composer autoloader and not the one from CoreLibs
Added an autoloader load test backend file
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
