Filters should detect and produce errors for all annotations instead of just the first encountered

[scott-lin]

Our filters should detect and report all issues instead of just the first. This will help customers save time by avoiding peeling the onion.

For example, when the following annotations are present, only the first produces an error.

/// <response code="200"></response>
/// <response code="400"></response>

Generation errors that result from this:

ExceptionType: MissingResponseDescriptionException || Message: Description is missing for response code: "200".

Expected:

ExceptionType: MissingResponseDescriptionException || Message: Description is missing for response code: "200".
ExceptionType: MissingResponseDescriptionException || Message: Description is missing for response code: "400".