Chris Baker

added a pointer-receiver accessor to RetryableError

1

this makes for more convenient extraction of the error in cases where a provider would like it. for example, when using the same function with and without `resource.Retry`, it's nice...

WIP: added "exec" authorization provider

5

This is a WIP pull request for comments. Please see the current comments in #173 for context and for arguments why this may not be ready to merge.