Make all models from Gazebo's database work well on Ignition

[chapulina]

Environment

All supported Ignition versions

Description

• Expected behavior:

  All models in this collection load properly on Ignition Gazebo: https://app.ignitionrobotics.org/OpenRobotics/fuel/collections/Gazebo%20classic%20model%20database

• Actual behavior:

  Many models don't load properly and need to be migrated, because of Ogre scripts and other differences.

This tutorial helps with migration.

Steps to reproduce

Drag these models into Ignition Gazebo, for example:

• https://app.ignitionrobotics.org/OpenRobotics/fuel/models/House%203
• https://app.ignitionrobotics.org/OpenRobotics/fuel/models/Pine%20Tree
• https://app.ignitionrobotics.org/OpenRobotics/fuel/models/Iris%20with%20Standoffs