Add support for update database API

[KoditkarVedant]

Description

You can now use the Notion API to update databases!

Supported updates are:

• renaming the database
• adding and removing properties
• renaming properties
• updating property types.

Note that updating the name and color select and multi select options is not supported.

Fixes # (issue)
#80

Type of change

Please delete options that are not relevant.

• New feature (non-breaking change which adds functionality)

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• I have checked my code and corrected any misspellings