Use ctrl+r to reset the whole simulation

[Li-Jinjie]

Suggested by Tommaso.

Currently, when we click ctrl+r, there is something wrong with IMU data.

[tombelv]

The error message that gets printed continuously is this one

[WARN] [1754978018.131818994, 41.910000000]: IMU: bad timestamp. curr time stamp: 41.910000, prev time stamp: 60.238000
Warning: TF_OLD_DATA ignoring data from the past (Possible reasons are listed at http://wiki.ros.org/tf/Errors%20explained) for frame dragon/root (parent world) at time 41.910000 according to authority /dragon/aerial_robot_base_node
         at line 279 in ./src/buffer_core.cpp