Add library for CRC calculation

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Overview

Add library for CRC calculation.

Details

This library is useful for users who want to emulate the detailed telemetry/command communication with components.

Conditions for close

• [ ] The library is implemented
• [ ] The test code is implemented

Supplement

NA

Note

ISSLローカルにあるuser部では実装済みなので、それをコピーしてくるのが良さそう。