Add plugins for all collections

Generate plugin directories for 36 collections not previously represented:
- awesome-copilot, cast-imaging, clojure-interactive-programming, copilot-sdk
- csharp-dotnet-development, csharp-mcp-development, database-data-management
- dataverse-sdk-for-python, devops-oncall, edge-ai-tasks, frontend-web-dev
- go-mcp-development, java-development, java-mcp-development, kotlin-mcp-development
- mcp-m365-copilot, openapi-to-application-* (5 variants), partners
- pcf-development, php-mcp-development, power-apps-code-apps, power-bi-development
- power-platform-mcp-connector-development, python-mcp-development
- ruby-mcp-development, rust-mcp-development, security-best-practices
- structured-autonomy, swift-mcp-development, technical-spike
- typescript-mcp-development, typespec-m365-copilot

Each plugin includes:
- .github/plugin/plugin.json with metadata
- README.md with installation instructions
- Symlinks to canonical agents, commands, and skills

Updated marketplace.json to include all 40 plugins.

plugins/pcf-development/README.md

@@ -0,0 +1,42 @@
+# Power Apps Component Framework (PCF) Development Plugin
+
+Complete toolkit for developing custom code components using Power Apps Component Framework for model-driven and canvas apps
+
+## Installation
+
+```bash
+# Using Copilot CLI
+copilot plugin install github/awesome-copilot/plugins/pcf-development
+```
+
+## What's Included
+
+### Instructions
+
+| Instruction | Description |
+|-------------|-------------|
+| `pcf-overview` | Pcf Overview |
+| `pcf-code-components` | Pcf Code Components |
+| `pcf-model-driven-apps` | Pcf Model Driven Apps |
+| `pcf-canvas-apps` | Pcf Canvas Apps |
+| `pcf-power-pages` | Pcf Power Pages |
+| `pcf-react-platform-libraries` | Pcf React Platform Libraries |
+| `pcf-fluent-modern-theming` | Pcf Fluent Modern Theming |
+| `pcf-dependent-libraries` | Pcf Dependent Libraries |
+| `pcf-events` | Pcf Events |
+| `pcf-tooling` | Pcf Tooling |
+| `pcf-limitations` | Pcf Limitations |
+| `pcf-alm` | Pcf Alm |
+| `pcf-best-practices` | Pcf Best Practices |
+| `pcf-sample-components` | Pcf Sample Components |
+| `pcf-api-reference` | Pcf Api Reference |
+| `pcf-manifest-schema` | Pcf Manifest Schema |
+| `pcf-community-resources` | Pcf Community Resources |
+
+## Source
+
+This plugin is part of [Awesome Copilot](https://github.com/github/awesome-copilot), a community-driven collection of GitHub Copilot extensions.
+
+## License
+
+MIT