1.1.0-netcore3.1

A collection of common CRC (CRC 8, 16, 32) algorithms implemented in .NET

This release is for .net core 3.1 and contains some code quality improvements, namely:

• better parameter validation
• throws exceptions when the buffer, start, and or length parameters are invalid
• no longer computes a 0 crc when start is less than the length parameter (bugfix)
• adds a few more unit tests