Implement ssblob package for downloading AIPs from Archivematica Storage Service

[Diogenesoftoronto]

• Allow AMSS to be used as a Blob
• fix config for ssblob type
• make timeout and base path configurable
• create a storage service config
• return error if multiple config values have been set

I considered not using reflections as the performance on them is not the best, I want to do a better test for this as well but I wonder what you peeps think of this so far. thoughts, ideas, beliefs and intentions???

Closes #820

[codecov[bot]]

Codecov Report

Attention: 38 lines in your changes are missing coverage. Please review.

Comparison is base (61c8835) 44.70% compared to head (13a260e) 45.18%.

Files	Patch %	Lines
internal/storage/ssblob/ssblob.go	65.90%	27 Missing and 3 partials :warning:
internal/storage/types/location_config.go	46.66%	8 Missing :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #847 +/- ## ========================================== + Coverage 44.70% 45.18% +0.48% ========================================== Files 91 93 +2 Lines 4926 5033 +107 ========================================== + Hits 2202 2274 +72 - Misses 2525 2559 +34 - Partials 199 200 +1 ```

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