[Feature] Add a --verbose flag to basset commands that output raw exceptions 

Someone I was having a conversation in discord suggested me that we use `getTraceAsString()` to help developers by providing more meaningful error messages. 

Our errors messages are pretty fine I think, but I also agree that there is no reason for us to don't provide a way for developers to get a more comprehensive report of what failed. 

`--verbose` it is.  