v3.15.0

• ADD Basic Auth support
• ADD support for GET method in websocket_tokens, POST will be deprecated in the future
• ADD CVSS(String), CWE(String), CVE(relationship) columns to vulnerability model and API
• ADD agent token's API says the renewal cycling duration
• MOD Improve database model to be able to delete workspaces fastly
• MOD Improve code style and uses (less flake8 exceptions, py3 super style, Flask app as singleton, etc)
• MOD workspaces' names regex to verify they cannot contain forward slash (/)
• MOD Improve bulk create logs
• FIX Own schema breaking Marshmallow 3.11.0+
• UPD flask_security_too to version 4.0.0+