Changelog for collect-errors

v0.1.0.0

• Initial port of CollectErrors and CN from mixed-types-num-0.4.2

• Simplify the code by abandoning EnsureCE and related type functions and utilities

• NumErrors within CN are now a set to prevent multiple occurrences of the same error

• Add CollectError or CN instances for various Prelude type classes, including Num and Floating, checking for domain violations