Add jora@, kenalba@, and hcutts@ to OWNERS

This better reflects the current team and should spread out review load.

BUG=none
TEST=none

Change-Id: Iae0044b1e1b3ed63ac382e66acaaa3b091101eb1
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/gestures/+/2762424
Tested-by: Harry Cutts <hcutts@chromium.org>
Auto-Submit: Harry Cutts <hcutts@chromium.org>
Reviewed-by: Daniel Kurtz <djkurtz@chromium.org>
Commit-Queue: Daniel Kurtz <djkurtz@chromium.org>