Split ragger ethereum client into multiple smaller files

tests/ragger/ethereum_client/response_parser.py

@@ -0,0 +1,14 @@
+class   EthereumRespParser:
+    def sign(self, data: bytes):
+        assert len(data) == (1 + 32 + 32)
+
+        v = data[0:1]
+        data = data[1:]
+
+        r = data[0:32]
+        data = data[32:]
+
+        s = data[0:32]
+        data = data[32:]
+
+        return v, r, s