Added support for TenableAD Application Settings APIs

[tushar-balwani]

Description

Added Tenable.AD Application Settings APIs

• Get the application settings (get)
• Update the application settings (update)

updated docs to support application settings api details

Fixes # (issue)

Type of change

Please delete options that are not relevant.

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

How Has This Been Tested?

Please describe the tests that you ran to verify your changes. Provide instructions so we can reproduce. Please also list any relevant details for your test configuration

• Added tests for application setting endpoints to test responses
• Added schema tests for testing payload inputs and response dict validation

Test Configuration:

• Python Version(s) Tested: 3.8.6
• Tenable.sc version (if necessary):

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
• Any dependent changes have been merged and published in downstream modules

[sonarcloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
100.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarCloud