Add GenericObject plugin files and assets

- Introduced default icon images in PNG and SVG formats.
- Added example icons for car and cube in SVG format.
- Created setup file for the GenericObject plugin with versioning and directory definitions.
- Included a header file with licensing information for the plugin.
- Added a remove.txt file with instructions for safe deletion.

plugins/genericobject/README.md

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+# Genericobject GLPI plugin
+
+[![License](https://img.shields.io/github/license/pluginsGLPI/genericobject.svg?&label=License)](https://github.com/pluginsGLPI/genericobject/blob/develop/LICENSE)
+[![Follow twitter](https://img.shields.io/twitter/follow/Teclib.svg?style=social&label=Twitter&style=flat-square)](https://twitter.com/teclib)
+[![Telegram Group](https://img.shields.io/badge/Telegram-Group-blue.svg)](https://t.me/glpien)
+[![Project Status: Active](http://www.repostatus.org/badges/latest/active.svg)](http://www.repostatus.org/#active)
+[![GitHub release](https://img.shields.io/github/release/pluginsGLPI/genericobject.svg)](https://github.com/pluginsGLPI/genericobject/releases)
+[![GitHub build](https://travis-ci.org/pluginsGLPI/genericobject.svg?)](https://travis-ci.org/pluginsGLPI/genericobject/)
+
+![Screenshot](./genericobject.gif "genericobject")
+
+
+The genericobject plugin allows to extends GLPi to manage new types of objects.
+
+
+## Documentation
+
+We maintain a detailed documentation here -> [Documentation](http://glpi-plugins.readthedocs.io/en/latest/genericobject/index.html)
+
+## Contact
+
+For notices about major changes and general discussion of genericobject, subscribe to the [/r/glpi](https://www.reddit.com/r/glpi/) subreddit.
+You can also chat with us via [@glpi on Telegram](https://t.me/glpien).
+
+## Professional Services
+
+![GLPI Network](./glpi_network.png "GLPI network")
+
+The GLPI Network services are available through our [Partner's Network](http://www.teclib-edition.com/en/partners/). We provide special training, bug fixes with editor subscription, contributions for new features, and more.
+
+Obtain a personalized service experience, associated with benefits and opportunities.
+
+## Contributing
+
+* Open a ticket for each bug/feature so it can be discussed
+* Follow [development guidelines](http://glpi-developer-documentation.readthedocs.io/en/latest/plugins/index.html)
+* Refer to [GitFlow](http://git-flow.readthedocs.io/) process for branching
+* Work on a new branch on your own fork
+* Open a PR that will be reviewed by a developer
+
+## Copying
+
+* **Code**: you can redistribute it and/or modify