Fix path to match package name

hyper_rpc/__init__.py

@@ -0,0 +1 @@
+"""hrpc module."""

hyper_rpc/cli.py

@@ -0,0 +1,6 @@
+"""User friendly command-line interface for hrpc generation."""
+
+
+def main():
+    """Command-line entrypoint."""
+    print("hello from hrpc.cli:main")

hyper_rpc/plugin.py

@@ -0,0 +1,6 @@
+"""Protoc plugin for hrpc client/server generation."""
+
+
+def main():
+    """Command-line entrypoint."""
+    print("hello from hrpc.plugin:main")