updates

• renamed auth to be more concise
• updated configuration and schema to better align with planned updates
• added support for http input
• added extractor feature allowing extraction from processed imgs
• added feature to check if stac item exists
• updated model for processor dicts
• added functionality to upload items
• dropped support for regex generated names in favor of simple id
• separated processes
• renamed processes to be more descriptive
• fixed tests

closes #2 (closed) #4 (closed) #8 (closed)