WIP refactor representation editing into geometry module. See #1222. Some new functionality as a result:

- Representations can now be added to any context, even invalid ones, non-subcontext, or missing target views
 - Switching representations now change all linked data objects

src/ifcblenderexport/blenderbim/bim/module/geometry/data.py

@@ -0,0 +1,26 @@
+from blenderbim.bim.ifc import IfcStore
+
+
+class Data:
+    products = {}
+
+    @classmethod
+    def load(cls, product_id):
+        file = IfcStore.get_file()
+        if not file:
+            return
+        cls.products[product_id] = {"Representations": {}}
+        product = file.by_id(product_id)
+        if not product.Representation:
+            return
+        for representation in product.Representation.Representations:
+            c = representation.ContextOfItems
+            cls.products[product_id]["Representations"][int(representation.id())] = {
+                "RepresentationIdentifier": representation.RepresentationIdentifier,
+                "RepresentationType": representation.RepresentationType,
+                "ContextOfItems": {
+                    "ContextType": c.ContextType,
+                    "ContextIdentifier": c.ContextIdentifier,
+                    "TargetView": c.TargetView if c.is_a("IfcGeometricRepresentationSubContext") else "",
+                }
+            }