Open Source Documentation: We should update the contributing guide

[udi-speedb]

We have decided that any existing file that we modify should have the following license text at its top, before the Facebook's license text:

// Copyright (C) 2023 Speedb Ltd. All rights reserved.
//
// 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.

The CONTIRBUTING.md file needs to be updated to reflect that.

[mrambacher]

Why did we decide that? Now any file an external updates must also have a Speedb copyright (in addition to Meta/Facebook? Which part of the file is copyright speedb and which part Meta?

[udi-speedb]

@mrambacher - This question should be addressed to @Guyme.