Publish a list of all assertions / error codes so that an application can handle those gracefully.

It should go beyond the github error code page, which is just a list of numbers and the string that the error code outputs.

The list should include categorization (error / warning / info) and some description that could help the application understand how to best deal with the scenario.

Some additional suggestions:

• The error numbers should be constant and never change
• The list of error codes stays up to date (e.g. updated with each release)
• In addition to the short error string, a more verbose description would be helpful