Fixes and improvement

• Fix: Go through GoLand analyse to fix type, grammar, handling of errors, ...
• Fix: login
• Improvement: remove progress bar and use multi ligne stats for upload tree

First release

This is the first working release.

Available commands:

• categories: Categories management
  • list: List categories
• getinfos: Get general information
• images: Images management
  • details: Details of the images
  • list: List of images
  • tag: Tag an image
  • upload: Upload of an images
  • upload-tree: Upload of a directory of images
• method: Reflexion management
  • details: Details of a method
  • list: List of available methods
  • try: Test a method. Parameters after the command as k=v, can be repeated like k=v1 k=v2.
• session: Session management
  • login: Initialize a connection to a piwigo instance
  • status: Get the status of your session