Fix for util package missing (#61)

Dockerfile.devel

@@ -53,7 +53,7 @@ RUN python setup.py install
 
 WORKDIR /monaistream-sdk
 COPY . .
-RUN python setup.py install && \
+RUN python -m pip install . && \
     rm -rf /monaistream-sdk
 
 WORKDIR /sample

src/monaistream/util/__init__.py

@@ -0,0 +1,12 @@
+################################################################################
+# Copyright 2022 MONAI Consortium
+# 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.
+################################################################################