Two ROS interfaces Mono_inertial and Stereo_inertial were added to the ORB-SLAM3. Modified the loading vocabulary in a faster binary way.
增加了两个ROS接口，单目IMU和双目IMU，替换了词典为二进制格式，加载速度更快。
Command
Mono_inertial: rosrun ORB_SLAM3 Mono_inertial /YOUR_PATH/ORBvoc.bin /YOUR_PATH/EuRoC.yaml
Stereo_inertial: rosrun ORB_SLAM3 Stereo_inertial /YOUR_PATH/ORBvoc.bin /YOUR_PATH/EuRoC.yaml
