Implement CRUD for PDP data

Type of change

• Bug Fix
• Feature

Does this introduce a change in the core logic?

• [Yes]

Does this introduce a change in the cloud provider implementation, and if so which cloud?

• AWS
• Azure
• GCP
• IBM

Does this introduce a change that must be documented in the README.md file?

• [No]

Updates description?

• Adding endpoint, model and schemas for PDP data.
• Closes #285 (closed)