GDScript: 2shady4u GODOT SQLite, update_rows workaround

## The purpose of this method is to replace the GODOT SQLite [method update_rows] method.[br]
## It allows for NULL entries into the database by leaving strings empty or by making values [code]null[/code].
## And unlike the [method update_rows] method, you do not have to wrap anything in quotation marks yourself.
func update_values(table : String, criteria : Dictionary, values_to_change : Dictionary, verbose : bool = true):
    var _wrap := func(a : Array, allow_null : bool = false) -> Array:
        for i in range(a.size()):
            if a[i] is String:
                a[i] = "\"%s\"" % a[i]
            if allow_null and ((a[i] is String and a[i] == "") or a[i] == null):
                a[i] = "NULL" # This intentionally leaves off escaped quotation marks to make the value actually NULL in the database.
        return a

    var _string := func(keys : Array, vals : Array, separator : String) -> String:
        var out : String = ""
        for i in range(keys.size()):
            out += "%s = %s" % [keys[i], str(vals[i]) + separator]
        out = out.rstrip(separator)
        return out

    if " " in table:    table = "'%s'" % table

    var criteria_keys : Array = criteria.keys()
    var criteria_vals : Array
    for i in criteria_keys:     criteria_vals.append(criteria[i])
    criteria_keys = _wrap.call(criteria_keys)
    criteria_vals = _wrap.call(criteria_vals)

    var changes_keys : Array = values_to_change.keys()
    var changes_vals : Array
    for i in changes_keys:      changes_vals.append(values_to_change[i])
    changes_keys = _wrap.call(changes_keys)
    changes_vals = _wrap.call(changes_vals, true)

    var criteria_string : String = _string.call(criteria_keys, criteria_vals, " AND ")
    var valchange_string : String = _string.call(changes_keys, changes_vals, ", ")

    var q = "UPDATE %s SET %s WHERE %s;" % [table, valchange_string, criteria_string]
    if verbose:     I.say(q)
    db.query(q)