Add header file dependencies in visu Makefile

Signed-off-by: Claudio Matsuoka <cmatsuoka@gmail.com>
Use floating point rotation matrices in visu

Signed-off-by: Claudio Matsuoka <cmatsuoka@gmail.com>
Add rectangle fades at start of u2e

Signed-off-by: Claudio Matsuoka <cmatsuoka@gmail.com>