`Gamepad._created` is a new private internal property that keeps track of when the instance was created. This is compared to the navigator timestamp in the update loop to avoid event spamming. Fix #4890.
`Gamepad._created` is a new private internal property that keeps track of when the instance was created. This is compared to the navigator timestamp in the update loop to avoid event spamming. Fix #4890.

BeanSeed/phaser,BeanSeed/phaser,spayton/phaser,photonstorm/phaser,spayton/phaser,photonstorm/phaser