Fix frontend installation when without -e

hpvm/projects/torch2hpvm/setup.py

@@ -7,6 +7,7 @@ setup(
     author="Yifan Zhao, Yuanjing Shi",
     author_email="yifanz16@illinois.edu, ys26@illinois.edu",
     packages=["torch2hpvm"],
+    package_data={"torch2hpvm": ["*.json", "*.cpp.in"]},
     install_requires=[
         "jinja2>=2.11",
         "networkx>=2.5",