Resolve "Populate main branch with initial commit (Release 0)"

Closes #2 (closed)

src/license/licenses.properties

+###
+# ========================LICENSE_START=================================
+# org.etsi.osl.model
+# %%
+# Copyright (C) 2019 openslice.io
+# %%
+# 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.
+# =========================LICENSE_END==================================
+###