Add CHANGELOG.rst files by automatic command.

0.2.16

Revert "0.2.16"

This reverts commit d118fd8a32da5275d6c16116d3ba617264b3ca70.

Revert "Add CHANGELOG.rst files by automatic command."

This reverts commit f14848f629e2201aa48a0d942d08080c8e1fe73f.

Adding CHANGELOG.rst files for the first time in rqt_robot_plugins megapkg.
0.2.16