Copyright header

The copyright header for Ωedit source code is:

Copyright (c) 2021 Concurrent Technologies Corporation.                                                       
                                                                                                                   
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 is 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.

By convention, we only require the start year (2021) to be present, so there is no need to update all the source files for each year that the project is active.

References:

• https://www.copyrightlaws.com/copyright-symbol-notice-year/