Release of v0.7.0

0.7.0 (2023-04-21)

• Automatic detection of collision shapes
• Add turtlebot world demo
• Rely on custom build of Box2D to increase the maximum polygon vertices count (8 to 12).
• fix inconsistent use_sim_time value for ROS 2 (it should be false)
• Expose shadow rendering parameters in the XML world file
• Abort simulation on exceptions in headless mode too
• ROS 1 and 2 nodes now quit cleanly and quickly with SIGINT
• Add ros2 launch for turtlebot world demo
• Automatic determination of zmin/zmax for blocks if not explicitly set in XML
• Force c++17 for python module
• Exit simulator on exceptions in GUI-related threads
• More automated testing
• Add unit tests in C++ too
• Refactor collision shape determination
• New UI checkbox: show collision shapes
• Allow simply geometry definitions without external 3D model file for "blocks"
• Light options are now under XML tag.
• Largest default physics simulation timestep changed from 50ms to 5ms
• GUI: change light direction
• Add GUI checkbox to enable/disable shadows
• Add rplidar A2 sensor model