Added lora support for Phi-2 (#302)

* Added lora support for Phi-2

* Added Phi-2 support in fuse and convert

* format + readme

---------

Co-authored-by: Awni Hannun <awni@apple.com>

lora/models/base.py

@@ -0,0 +1,15 @@
+import inspect
+from dataclasses import dataclass
+
+
+@dataclass
+class BaseModelArgs:
+    @classmethod
+    def from_dict(cls, params):
+        return cls(
+            **{
+                k: v
+                for k, v in params.items()
+                if k in inspect.signature(cls).parameters
+            }
+        )