Changelog for Win32-errors-0.2.2.3

## 0.2.3 * Support for GHC 8.2.x and GHC 8.4.x ## 0.2.2 * Support for GHC 8.0.x ## 0.2.1 * Support for GHC 7.8.x ## 0.2 * Add several additional error codes. * Update constraints on base package.