Add Icon and Implementation (MCP spec 2025-11-25) (#219)

* Add Icon and Implementation per MCP spec 2025-11-25

* Formatting

* Fix Resourcelink Icon

* Formatting

* Always emit full Implementation payload in initialize response

* Add Icon attribute and IconTheme enum

* Update Icon.php

* Formatting

Update facade docblocks

Update facade docblocks

Update facade docblocks

Update facade docblocks

Fix code styling

Update facade docblocks

Makes imports consistent (#171)

Update boost skill description and remove core guideline (#170)

Add example of registering MCP Tool in a Server (#164)

* Add example of registering MCP Tool in a Server

* Remove unused Route import from Mcp facade

* Add resource and prompt registration to server snippet

* Ignore PHPStan iterable type errors for auto-generated facade docblocks

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Co-authored-by: Pushpak Chhajed <pushpak1300@gmail.com>