Update the ihmc_msgs package version for 0.10.0 branch

[edbot]

Required Info	ihmc_msgs/package.xml has incorrect package version.
Version or commit hash	release/0.10.0
Operating System	n/a
ROS Version	n/a

####Steps to reproduce issue
n/a

####Expected behavior
The package versions track the release tag numbering. This is a branch (not tagged yet) but the API changed and it breaks compatibility in packages including the ihmc_msgs.

####Actual behavior
Current version is 0.9.2 (which did not include spine messages).

####Contributors with relevant knowledge or expertise (optional)
@dljsjr