[Feature] add google ai embedder (#1019)

Co-authored-by: Deven Patel <deven298@yahoo.com>

embedchain/config/embedder/google.py

@@ -0,0 +1,18 @@
+from typing import Optional
+
+from embedchain.config.embedder.base import BaseEmbedderConfig
+from embedchain.helpers.json_serializable import register_deserializable
+
+
+@register_deserializable
+class GoogleAIEmbedderConfig(BaseEmbedderConfig):
+    def __init__(
+        self,
+        model: Optional[str] = None,
+        deployment_name: Optional[str] = None,
+        task_type: Optional[str] = None,
+        title: Optional[str] = None,
+    ):
+        super().__init__(model, deployment_name)
+        self.task_type = task_type or "retrieval_document"
+        self.title = title or "Embeddings for Embedchain"