add: full Apache 2 license text

Created by  3GW9rqd5wL3WWKVwxt6NnRZM6fbojdHdGbAfHd4hz8ma  on April 10, 2022
G7NOMKCKZPPJ62MJMUO3RQB6QPUIOUBFZRAZ7SQOHFTER3NAIGOAC
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