Add RemovableDrive plugin that has been moved from Uranium

Since it now depends on GCodeWriter we should put it somewhere where
GCodeWriter actually exists.

plugins/RemovableDriveOutputDevice/__init__.py

@@ -0,0 +1,32 @@
+# Copyright (c) 2015 Ultimaker B.V.
+# Uranium is released under the terms of the AGPLv3 or higher.
+
+import platform
+
+from UM.i18n import i18nCatalog
+catalog = i18nCatalog("uranium")
+
+def getMetaData():
+    return {
+        "plugin": {
+            "name": catalog.i18nc("Removable Drive Output Device Plugin name", "Removable Drive Output Device Plugin"),
+            "author": "Ultimaker B.V.",
+            "description": catalog.i18nc("Removable Drive Output Device Plugin description", "Provides removable drive hotplugging and writing support"),
+            "version": "1.0",
+            "api": 2
+        }
+    }
+
+def register(app):
+    if platform.system() == "Windows":
+        from . import WindowsRemovableDrivePlugin
+        return { "output_device": WindowsRemovableDrivePlugin.WindowsRemovableDrivePlugin() }
+    elif platform.system() == "Darwin":
+        from . import OSXRemovableDrivePlugin
+        return { "output_device": OSXRemovableDrivePlugin.OSXRemovableDrivePlugin() }
+    elif platform.system() == "Linux":
+        from . import LinuxRemovableDrivePlugin
+        return { "output_device": LinuxRemovableDrivePlugin.LinuxRemovableDrivePlugin() }
+    else:
+        Logger.log("e", "Unsupported system %s, no removable device hotplugging support available.", platform.system())
+        return { }