Implement arrangement framework for node groups

- Introduced `frames.py` to manage field complex calculations and their arrangement within node groups.
- Added functionality to create and remove field frames based on node arrangements.
- Developed `passages.py` to find unobstructed paths for connections around calculation frames.
- Implemented `references.py` to route shared results on peripheral tracks, ensuring efficient distribution of outputs.
- Created `sections.py` to reserve space for field calculations adjacent to geometry consumers.
- Added `sources.py` to position shared calculation sources effectively beside their distribution channels.
- Enhanced outline smoothing with `outline_smoothing.py` to adapt camera depth along original outlines.

tools/nodes/groups/image_depth_balloon.py

@@ -110,7 +110,7 @@ def build_image_depth_balloon_group():
     group = bpy.data.node_groups.new(name, 'GeometryNodeTree')
     group.is_modifier, group.use_fake_user = (True, True)
     group.color_tag = 'GEOMETRY'
-    group['anyimage_asset_revision'] = 11
+    group['anyimage_asset_revision'] = 12
     interface_socket(group, 'Geometry', 'INPUT', 'NodeSocketGeometry')
     float_input(group, 'Thickness', 1.0).description = 'Balloon profile multiplier; zero returns the sheet'
     float_input(group, 'Depth Scale', 1.0)
@@ -120,8 +120,8 @@ def build_image_depth_balloon_group():
     iterations.min_value, iterations.max_value = (0, 20)
     options = group.interface.new_panel(name='Options', default_closed=True)
     float_input(group, 'Cleanup Threshold', 0.0, parent=options)
-    float_input(group, 'Reference Depth', 1.0, subtype='DISTANCE', parent=options)
     float_input(group, 'Smooth Weight', 1.0, maximum=1, subtype='FACTOR', parent=options)
+    float_input(group, 'Reference Depth', 1.0, subtype='DISTANCE', parent=options)
     vector_input(group, 'Depth Direction', (0, 0, 1), subtype='DIRECTION', parent=options)
     data = group.interface.new_panel(name='Data', default_closed=True)
     interface_socket(group, 'Inward Axis', 'INPUT', 'NodeSocketMenu', data).hide_in_modifier = True