Add contactLibrary.js for Microsoft Dataverse contact table operations

[Copilot]

Overview

This PR adds a new JavaScript library contactLibrary.js that provides functions for working with Microsoft Dataverse 'contact' table as described in the Power Apps Web API documentation.

Features

The library includes the following functionality:

• Base HTTP functions with OAuth 2.0 authentication
  • GET, POST, PATCH, and DELETE operations
• Contact CRUD operations
  • getContact: Retrieve contact by ID with optional field selection
  • createContact: Create new contacts
  • updateContact: Update existing contacts
  • deleteContact: Delete contacts
• Specialized contact functions
  • setContactFullName: Set fullname to firstname+lastname
  • listActiveContacts: List active contacts with filtering options

Implementation Details

• All functions use the fetch API for HTTP requests
• All API calls require an OAuth 2.0 Bearer token for authentication
• Functions follow a consistent promise-based pattern for async operations
• Comprehensive JSDoc comments for all functions

Example Usage

// Get a contact
const contact = await getContact('https://yourorg.crm.dynamics.com', 'contact-guid', token);

// Update fullname based on first and last name
await setContactFullName('https://yourorg.crm.dynamics.com', 'contact-guid', 'John', 'Doe', token);

// List active contacts
const activeContacts = await listActiveContacts('https://yourorg.crm.dynamics.com', token);

This library serves as a reusable component for Power Platform applications that need to interact with contact records in Dataverse.

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