[added] droids display percent power left when examined
[added] droids consume 1% power per minute while called
[added] droids recharge with droid battery

Change-Id: Ie9e9d98857135886de77cd8cf5a600e0eba15a18
Merge "[added] droids display percent power left when examined [added] droids consume 1% power per minute while called [added] droids recharge with droid battery" into unstable