IfcText to appear on top of object properties stack

1) Puts IFC Text only on top of ifc panels to make it easier to change it's text
2) I guess it could be a good practive to set `bl_order = 1` by default so it will be possible later to prioritize something since by default blender sets `bl_order = 0` and then even `bl_order = -1` wouldn't help.
3) May not work in previously created files

src/blenderbim/blenderbim/bim/module/drawing/ui.py

@@ -293,6 +293,7 @@ class BIM_PT_product_assignments(Panel):
     bl_space_type = "PROPERTIES"
     bl_region_type = "WINDOW"
     bl_context = "object"
+    bl_order = 1
 
     @classmethod
     def poll(cls, context):
@@ -327,6 +328,7 @@ class BIM_PT_text(Panel):
     bl_space_type = "PROPERTIES"
     bl_region_type = "WINDOW"
     bl_context = "object"
+    bl_order = 0
 
     @classmethod
     def poll(cls, context):