Refactor comparison operations in geometry nodes

- Introduced a new `compare_node` function to streamline comparison operations across various geometry nodes.
- Replaced instances of mathematical comparison nodes with the new `compare_node` function in multiple files, enhancing code readability and maintainability.
- Updated related logic in cutout, depth surface, and image processing groups to utilize the new comparison method.
- Ensured consistent handling of boolean logic through the introduction of a `boolean_node` function for combining boolean inputs.

tools/nodes/common/nodes.py

@@ -79,6 +79,41 @@ def math_node(nodes, operation):
     return node
 
 
+_COMPARE_INPUTS = {
+    "FLOAT": ("A", "B"),
+    "INT": ("A_INT", "B_INT"),
+    "VECTOR": ("A_VEC3", "B_VEC3"),
+    "RGBA": ("A_COL", "B_COL"),
+}
+
+
+def compare_node(group, operation, a, b, data_type="FLOAT"):
+    """Compare two inputs on the given data type and return the boolean result."""
+    node = group.nodes.new("FunctionNodeCompare")
+    node.data_type, node.operation = data_type, operation
+    for value, identifier in zip((a, b), _COMPARE_INPUTS[data_type]):
+        socket = next(item for item in node.inputs if item.identifier == identifier)
+        if isinstance(value, (bool, int, float)):
+            socket.default_value = value
+        else:
+            group.links.new(value, socket)
+    return node.outputs["Result"]
+
+
+def boolean_node(group, operation, a=None, b=None):
+    """Combine boolean inputs and return the boolean result."""
+    node = group.nodes.new("FunctionNodeBooleanMath")
+    node.operation = operation
+    for value, index in ((a, 0), (b, 1)):
+        if value is None:
+            continue
+        if isinstance(value, bool):
+            node.inputs[index].default_value = value
+        else:
+            group.links.new(value, node.inputs[index])
+    return node.outputs["Boolean"]
+
+
 def menu_switch(group, control, names, kind):
     selector = next((node for node in group.nodes if node.bl_idname == "GeometryNodeMenuSwitch" and node.inputs["Menu"].is_linked and node.inputs["Menu"].links[0].from_socket.name == control), None)
     if selector is None: