Included exception info in the logs, if available

[ricardogsilva]

Overview

This PR modifies API.get.exception()'s already existing call to LOGGER.error() to include exception-related information, if available.

As a result of this modification, all calls to LOGGER.error() made just before a call to API.get_exception() also got removed, as the logging call that is inside the method is now able to show info related to exceptions.

Related Issue / Discussion

• fixes logs don't have error information #1442

Contributions and Licensing

(as per https://github.com/geopython/pygeoapi/blob/master/CONTRIBUTING.md#contributions-and-licensing)

• I'd like to contribute [feature X|bugfix Y|docs|something else] to pygeoapi. I confirm that my contributions to pygeoapi will be compatible with the pygeoapi license guidelines at the time of contribution.
• I have already previously agreed to the pygeoapi Contributions and Licensing Guidelines

[doublebyte1]

Not related, but maybe update this to something like "exception description"?

pygeoapi/pygeoapi/api.py

Line 4023 in 1ee7864

:param description: OGC API exception code

[github-actions]

This Pull Request has been inactive for 90 days. As per RFC4, in order to manage maintenance burden, it will be automatically closed in 7 days.

[ricardogsilva]

@tomkralidis rebased