### Description
This PR handles two things:
* Fixes the serialization of the weaviate destination connector since
the client content breaks serialization when present due to `TypeError:
cannot pickle '_thread.lock' object`.
* Set finer auth control rather than generic dictionary on the CLI and
access config.
### Description
Given all the shell files that now exist in the repo, would be nice to
have linting/formatting around them (in addition to the existing
shellcheck which doesn't do anything to format the shell code). This PR
introduces `shfmt` to both check for changes and apply formatting when
the associated make targets are called.
Closes#1781.
- Adds a Weaviate destination connector
- The connector receives a host for the weaviate instance and a weaviate
class name.
- Defines a weaviate schema for json elements.
- Defines the pre-processing to conform unstructured's schema to the
proposed weaviate schema.
