Closes #7780 - Add ALT+Click unhide to select_ifc_class

Clear hide_viewport and hide_set on matched objects
when the operator is invoked with Alt held, so hidden
objects of the target IFC class are revealed and selected.

Generated with the assistance of an AI coding tool.

src/bonsai/bonsai/bim/module/search/operator.py

@@ -1264,15 +1264,17 @@ class SelectGlobalId(Operator):
 
 
 class SelectIfcClass(Operator):
-    """Click to select all objects that match with the given IFC class\nSHIFT + Click to also match Predefined Type"""
+    """Click to select all objects that match with the given IFC class\nSHIFT + Click to also match Predefined Type\nALT + Click to also unhide hidden objects (viewport and local hide)"""
 
     bl_idname = "bim.select_ifc_class"
     bl_label = "Select IFC Class"
     bl_options = {"REGISTER", "UNDO"}
     should_filter_predefined_type: BoolProperty(default=False)
+    should_unhide: BoolProperty(default=False)
 
     def invoke(self, context, event):
         self.should_filter_predefined_type = event.shift
+        self.should_unhide = event.alt
         return self.execute(context)
 
     def execute(self, context):
@@ -1292,6 +1294,9 @@ class SelectIfcClass(Operator):
                 ):
                     continue
                 if obj := tool.Ifc.get_object(element):
+                    if self.should_unhide:
+                        obj.hide_viewport = False
+                        obj.hide_set(False)
                     tool.Blender.select_object(obj)
 
             # copy selection query to clipboard