Allow CRC mismatch to be ignored

[kevinherron]

fixes #87

Copilot reviewed 2 out of 2 changed files in this pull request and generated no suggestions.

Comments skipped due to low confidence (2)

modbus/src/main/java/com/digitalpetri/modbus/client/ModbusRtuClient.java:234

• The Javadoc comment is missing a period at the end. It should be 'Reset the transport's frame parser.'

 * Reset the transport's frame parser

modbus/src/main/java/com/digitalpetri/modbus/exceptions/ModbusCrcException.java:14

• [nitpick] The error message 'CRC mismatch' could be more informative by including details about the expected and actual CRC values.

super("CRC mismatch");