[V3] convert nodes_freelunch.py to the V3 schema

[bigcat88]

Nodes were tested after conversion:

Objects git diff:

diff --git a/v3_object_info.json b/master_object_info.json
index e5e6d34..3636ac2 100644
--- a/v3_object_info.json
+++ b/master_object_info.json
@@ -6401,8 +6401,7 @@
         "input": {
             "required": {
                 "model": [
-                    "MODEL",
-                    {}
+                    "MODEL"
                 ],
                 "b1": [
                     "FLOAT",
@@ -6460,25 +6459,18 @@
         "output_name": [
             "MODEL"
         ],
-        "output_tooltips": [
-            null
-        ],
         "name": "FreeU",
-        "display_name": null,
+        "display_name": "FreeU",
         "description": "",
         "python_module": "comfy_extras.nodes_freelunch",
         "category": "model_patches/unet",
-        "output_node": false,
-        "deprecated": false,
-        "experimental": false,
-        "api_node": false
+        "output_node": false
     },
     "FreeU_V2": {
         "input": {
             "required": {
                 "model": [
-                    "MODEL",
-                    {}
+                    "MODEL"
                 ],
                 "b1": [
                     "FLOAT",
@@ -6536,18 +6528,12 @@
         "output_name": [
             "MODEL"
         ],
-        "output_tooltips": [
-            null
-        ],
         "name": "FreeU_V2",
-        "display_name": null,
+        "display_name": "FreeU_V2",
         "description": "",
         "python_module": "comfy_extras.nodes_freelunch",
         "category": "model_patches/unet",
-        "output_node": false,
-        "deprecated": false,
-        "experimental": false,
-        "api_node": false
+        "output_node": false
     },
     "SamplerCustom": {
         "input": {

[bigcat88]

+label: Core

[Kosinkadink]

Node authors notified, will merge on Friday December 5th.