chore: changeset for unknown options

Author: jmcdo29

.changeset/cold-eggs-collect.md

@@ -0,0 +1,7 @@
+---
+'nest-commander': minor
+---
+
+Two new options exist, `allowUnknownOptions` and `allowExcessArgs`. Both are
+optional booleans that will tell the underlying commander command to allow for
+extra options and arguments, as is already supported by commander.