Added Apache 2 Information on Files

context_awareness/_context-awareness-deployment.yaml

+# Copyright (c) 2024 University of Piraeus Research Centre
+# 
+# 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.
+# 
+# SPDX-License-Identifier: Apache-2.0
+# 
+# Contributors:
+#     [name] - [contribution]
+
 # ONLY HERE AS AN EXAMPLE
 # Author: Panagiotis Karamolegkos (UPRC)
 
@@ -17,3 +36,4 @@ spec:
   - name: shared-volume
     persistentVolumeClaim:
       claimName: shared-pvc-ro
+