Add Icon Explorer, License Manager and QR Code (#381)

README.md

@@ -211,8 +211,10 @@ See [Vivraan/godot-lang-support](https://github.com/Vivraan/godot-lang-support).
 - [Godot Spin Button](https://github.com/yudinikita/godot-spin-button) - Horizontal Selector with extended options.
 - [Godot XR Tools](https://github.com/godotvr/godot-xr-tools) - Basic components for XR development.
 - [HTerrain](https://github.com/Zylann/godot_heightmap_plugin) - Heightmap-based terrain. Supports texture painting, colouring, holes, level of detail and grass. *(Godot 3 and 4)*
+- [Icon Explorer](https://kenyoni-software.github.io/godot-addons/addons/icon_explorer) - Browse and save icons from popular icon collections.
 - [Importality](https://github.com/nklbdev/godot-4-importality) - raster graphics and animations importers: Aseprite, Krita, Pencil2D, Piskel, Pixelorama and others.
 - [Input Helper](https://github.com/nathanhoad/godot_input_helper) - A helper for detecting input devices and remapping controls. *(Godot 3 and 4)*
+- [License Manager](https://kenyoni-software.github.io/godot-addons/addons/licenses) - Manage license and copyright for third party graphics, software or libraries. Group them into categories, add descriptions or web links.
 - [LimboAI](https://github.com/limbonaut/limboai) - Behavior trees and state machines. Comes with editor, visual debugger, comprehensive demo and tutorial.
 - [Maaack's Game Template Plugin](https://github.com/Maaack/Godot-Game-Template) - Template with a main menu, options menus, pause menu, credits, scene loader, extra tools, and an example game scene.
 - [Maaack's Menus Template](https://github.com/Maaack/Godot-Menus-Template) - Template with a main menu, options menus, credits, and a scene loader.
@@ -220,6 +222,7 @@ See [Vivraan/godot-lang-support](https://github.com/Vivraan/godot-lang-support).
 - [NobodyWho](https://github.com/nobodywho-ooo/nobodywho) - Local large language models (LLMs) for "AI-powered" NPC dialogue.
 - [Orchestrator](https://github.com/Vahera/godot-orchestrator) - Dialog and visual-scripting subsystem for 2D and 3D games.
 - [PixelPen](https://github.com/pixelpen-dev/pixelpen) - Pixel art drawing and animation: Common drawing tools such as selection, shape creation, mirroring, tiling, and animation features within the Godot editor.
+- [QR Code](https://kenyoni-software.github.io/godot-addons/addons/qr_code) - QR Code generation either with the included QRCodeRect node or use the encoding result of the QRCode class.
 - [Quest Manager](https://github.com/Rubonnek/quest-manager) - Minimalistic quest manager able to track quest state at runtime for easier debugging.
 - [QuestSystem](https://github.com/shomykohai/quest-system) - A simple and extensible quest manager and creator.
 - [Scene Manager](https://github.com/glass-brick/Scene-Manager) - Make nice and customizable scene transitions in one line of code. *(Godot 3 and 4)*