simple http auth

[StpMax]

Description

Simple auth for HTTP and routes to get and edit username/password

Fixes #(issue)

Type of change

(Please delete options that are not relevant)

• [ ] 🐛 Bug fix (non-breaking change which fixes an issue)
• [x] ⚡ New feature (non-breaking change which adds functionality)
• [ ] 📢 Breaking change (fix or feature that would cause existing functionality to not work as expected)
• [x] 📄 This change requires a documentation update

What is the solution?

Checklist:

• [x] My code follows the style guidelines(PEP 8) of MindsDB.
• [x] I have commented my code, particularly in hard-to-understand areas.
• [ ] I have updated the documentation, or created issues to update them.
• [x] I fixed|updated|added unit tests and integration tests for each feature (if applicable).
• [ ] I have shared a short loom video or screenshots demonstrating any new functionality.