Bug fixes and Enhancements.

• Adds exception handling so the program doesn't break on errored rules
• Fixes #167 and an error in previous fix

Minor bug fixes and enhancements

• Replaces urllib by requests
• Removes stdout when importing pyQuARC
• Fixes a null pointer exception in collection_state_consistency_check

Include `version.txt` in package build

Fixes the following error when importing the package:

FileNotFoundError: [Errno 2] No such file or directory: '/usr/local/lib/python3.9/site-packages/pyQuARC-1.1.0-py3.9.egg/pyQuARC/version.txt'

Support for DIF10 collection level metadata

• Adds support for the DIF10 metadata format
• Restructures schema files for ease of new rule addition
• Adds new checks (complete list in the CHANGELOG.md file)
• Adds documentation for all the available checks
• Bug fixes

V1.0.0 Beta release

• Supports ECHO 10 collection-level metadata quality assessment
• Can be used as a package