matlog v1.1

Support MATLAB R2020a with CI/CD for R2021a, R2022a, R2023a, R2023b.

Support escaped '%' symbol in messages with '%%'.

Message format strings with unrecognised token names results in MATLAB warning.

Remove some methods which were mistakenly marked as a valid token despite not being so.

matlog v1.0

Logging to console and file using a hierarchy of Loggers and a multitude of LogHandlers.
Set message format.
Set log level thresholds for Loggers and LogHandlers.
Simple configuration via basicConfig.