Add OneDrive Integration for Elsa Workflows

[Copilot]

This PR implements a new integration module for OneDrive in Elsa Workflows. The module allows workflows to interact with OneDrive through Microsoft Graph API, supporting various file and folder operations.

Features

• Authentication & Configuration

  • OAuth 2.0 authentication via Azure Identity
  • Configurable tenant, client credentials, and scopes

• File Operations

  • Copy, move, rename, and delete files/folders
  • Upload files (from stream, string, byte array, or local path)
  • Upload files directly from URL (OneDrive Personal only)
  • Download files to stream
  • Get file metadata

• Folder & Drive Operations

  • Create folders
  • List drives
  • Search files, folders, and SharePoint sites

• Sharing Functionality

  • Generate share links
  • Send sharing invitations with customizable permissions

• Event Triggers

  • Watch for file changes
  • Watch for file/folder changes with filtering capabilities

• Advanced Capabilities

  • Make arbitrary API calls to Microsoft Graph API

Usage

// Register the module in your Elsa application
services.AddElsa(elsa => 
{
    elsa.UseOneDrive(options => 
    {
        options.TenantId = "your-tenant-id";
        options.ClientId = "your-client-id";
        options.ClientSecret = "your-client-secret";
    });
});

// Create a workflow that uses OneDrive activities
var workflow = new WorkflowDefinition
{
    Activities =
    {
        new UploadFile
        {
            Content = new Input<object>("Hello, World!"),
            DestinationPath = new Input<string>("Documents/hello.txt")
        }
    }
};

Dependencies

• Microsoft Graph SDK
• Azure Identity for authentication

Documentation is included in the module's README.md file.

Fixes #27.

Warning

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