j3dcore: Annotate list of user lights in GraphicsContext3D

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
j3dcore: Annotate list of user sounds in GraphicsContext3D

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
j3dcore: remove unused variables, annotate sounds list in GraphicsContext3D

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
j3dcore: annotate list of lights in GraphicsContext3D

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>