bonsai, ifcopenshell - append IfcSurfaceStyles from other projects

And other IfcPresentationStyles, though they are not currently supported by bonsai.

Example - https://imgur.com/a/AHlvowp

src/ifcopenshell-python/ifcopenshell/api/project/append_asset.py

@@ -25,7 +25,18 @@ import ifcopenshell.api.owner.settings
 import ifcopenshell.util.element
 import ifcopenshell.util.geolocation
 import ifcopenshell.util.placement
-from typing import Optional, Any, Union
+from typing import Optional, Any, Union, Literal, get_args
+
+
+APPENDABLE_ASSET = Literal[
+    "IfcTypeProduct",
+    "IfcProduct",
+    "IfcMaterial",
+    "IfcCostSchedule",
+    "IfcProfileDef",
+    "IfcPresentationStyle",
+]
+APPENDABLE_ASSET_TYPES = get_args(APPENDABLE_ASSET)
 
 
 def append_asset(
@@ -154,6 +165,9 @@ class Usecase:
         elif self.settings["element"].is_a("IfcProfileDef"):
             self.target_class = "IfcProfileDef"
             return self.append_profile_def()
+        elif self.settings["element"].is_a("IfcPresentationStyle"):
+            self.target_class = "IfcPresentationStyle"
+            return self.append_presentation_style()
 
     def get_existing_element(self, element):
         if element.id() in self.added_elements:
@@ -186,6 +200,10 @@ class Usecase:
         self.whitelisted_inverse_attributes = {"IfcProfileDef": ["HasProperties"]}
         return self.add_element(self.settings["element"])
 
+    def append_presentation_style(self):
+        self.whitelisted_inverse_attributes = {}
+        return self.add_element(self.settings["element"])
+
     def append_type_product(self):
         self.whitelisted_inverse_attributes = {
             "IfcObjectDefinition": ["HasAssociations"],