reporeformat V2 (#23)

* reformat factor implement process

* move some code to more reasonable place

* fix the bug

* add test function in factor_extract_and_implement.py

* change select factor number to ratio , add some factor implement setting and fix some bug while using knowledgebase

* change evoagent

* add abstract class EvoAgent

* add benchmark workflow

* fix some bug in llm_utils

* run wenjun's code

* fix the knowledgebase instance check

---------

Co-authored-by: xuyang1 <xuyang1@microsoft.com>

rdagent/core/evaluation.py

@@ -0,0 +1,16 @@
+from abc import ABC, abstractmethod
+from rdagent.core.task import (
+    TaskImplementation,
+    BaseTask,
+)
+
+class Evaluator(ABC):
+    @abstractmethod
+    def evaluate(
+        self,
+        target_task: BaseTask,
+        implementation: TaskImplementation,
+        gt_implementation: TaskImplementation,
+        **kwargs,
+    ):
+        raise NotImplementedError