Paired bloom filter files are missing the correct copyright notice

[isaac-io]

With the merging of #54, the following files are now missing the Speedb copyright notice or have the wrong one:

• plugin/speedb/paired_filter/speedb_db_bloom_filter_test.cc
• plugin/speedb/paired_filter/speedb_paired_bloom.cc
• plugin/speedb/paired_filter/speedb_paired_bloom.h
• plugin/speedb/paired_filter/speedb_paired_bloom_internal.cc
• plugin/speedb/paired_filter/speedb_paired_bloom_internal.h
• plugin/speedb/speedb_customizable_test.cc

To Reproduce

N/A

Expected behavior

All of these files should have the following Speedb copyright notice at the beginning as required by the contribution guidelines:

// Copyright (C) 2022 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.

Additional context

N/A