Add HQ print to template print module

[christoph]

Make it configurable with an element var.

[christoph]

The replacement is handled on the client side. Here's an example for the element var.

INSERT INTO gui_element_vars(fkey_gui_id, fkey_e_id, var_name, var_value, context, var_type) VALUES('<appId>', 'printPDF', 'highqualitymapfiles', '[
    {
        "pattern": "/data/umn/germany/germany.map",
        "replacement" : {
            "288": "/data/umn/germany/germany_4.map" 
        }
    }
]', '' ,'var');

[christoph]

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