WASD now move relative to direction of camera. Closes GH-2

Update basic-camera

deathcap/basic-camera@7c94de00bd6aee14fb0301e902dd91f39d700173 Set cameraVector from output matrix after rotation. Closes deathcap/basic-camera#4
deathcap/basic-camera@2720175e861aef03c4c494949fddbf499dfabd1e Extract camera vector from rotation matrix

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