imu bootstrap tests
After bootstrapping implemented in IMU, there should be added in gtests. There are 2 old gtests "static_init" (2D and 3D) where factors of zero relative displacement are added. They should be replaced by the STATIC bootstraping. There is already a gtest_imu_3d_bootstrap
, but it is quite simple... maybe it should be extended.
Edited by Joan Vallvé Navarro