Implement GCodeGzWriter

This plug-in outputs g-code to a gzipped archive. It is used for sending prints to the Ultimaker 3 family faster.

Contributes to issue CURA-5097.

plugins/GCodeGzWriter/__init__.py

@@ -0,0 +1,22 @@
+# Copyright (c) 2018 Ultimaker B.V.
+# Cura is released under the terms of the LGPLv3 or higher.
+
+from . import GCodeGzWriter
+
+from UM.i18n import i18nCatalog
+catalog = i18nCatalog("cura")
+
+def getMetaData():
+    return {
+        "mesh_writer": {
+            "output": [{
+                "extension": "gcode.gz",
+                "description": catalog.i18nc("@item:inlistbox", "Compressed G-code File"),
+                "mime_type": "application/gzip",
+                "mode": GCodeGzWriter.GCodeGzWriter.OutputMode.BinaryMode
+            }]
+        }
+    }
+
+def register(app):
+    return { "mesh_writer": GCodeGzWriter.GCodeGzWriter() }