Give custom search type support

Author: ashish-spext

videodb/_constants.py

@@ -17,6 +17,7 @@ class SearchType:
     keyword = "keyword"
     scene = "scene"
     llm = "llm"
+    custom = "custom"
 
 
 class IndexType:

videodb/search.py

@@ -256,6 +256,7 @@ def search_inside_collection(self, **kwargs):
     SearchType.semantic: SemanticSearch,
     SearchType.keyword: KeywordSearch,
     SearchType.scene: SceneSearch,
+    SearchType.custom: SemanticSearch,
 }