working on tensor core test

pyproject.toml

+[build-system]
+requires = ["setuptools>=41.0", "wheel", "pccm>=0.2.5", "cumm>=0.1.3"]
+build-backend = "setuptools.build_meta"

spconv/core_cc/__init__.pyi

+# Copyright 2021 Yan Yan
+# 
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+