Update and rename GroupSVGsThenMerge.PY to __init__.py

Author: SimonHeggie

GroupSVGsThenMerge.PY

@@ -0,0 +1,24 @@
+from krita import Extension, Krita
+from PyQt5.QtWidgets import QAction, QFileDialog
+from .merge_svg_layers import merge_all_vector_layers_and_export
+
+class MergeSvgExtension(Extension):
+    """ Krita Extension to merge vector layers and export as an SVG """
+
+    def __init__(self, parent):
+        super().__init__(parent)
+
+    def setup(self):
+        """ Setup the extension (no special setup needed). """
+        pass
+
+    def createActions(self, window):
+        """ Adds a menu action to Krita. """
+        action = window.createAction("merge_svg_layers", "Merge & Export SVG", "tools/scripts")
+        action.triggered.connect(self.run_script)
+
+    def run_script(self):
+        """ Runs the main script when the menu action is clicked. """
+        merge_all_vector_layers_and_export()
+
+Krita.instance().addExtension(MergeSvgExtension(Krita.instance()))