Added support for new concept slider training script to CLI and UI

extensions_built_in/concept_slider/__init__.py

@@ -0,0 +1,26 @@
+# This is an example extension for custom training. It is great for experimenting with new ideas.
+from toolkit.extension import Extension
+
+
+# This is for generic training (LoRA, Dreambooth, FineTuning)
+class ConceptSliderTrainerTrainer(Extension):
+    # uid must be unique, it is how the extension is identified
+    uid = "concept_slider"
+
+    # name is the name of the extension for printing
+    name = "Concept Slider Trainer"
+
+    # This is where your process class is loaded
+    # keep your imports in here so they don't slow down the rest of the program
+    @classmethod
+    def get_process(cls):
+        # import your process class here so it is only loaded when needed and return it
+        from .ConceptSliderTrainer import ConceptSliderTrainer
+
+        return ConceptSliderTrainer
+
+
+AI_TOOLKIT_EXTENSIONS = [
+    # you can put a list of extensions here
+    ConceptSliderTrainerTrainer
+]