change stanncam_init() and stanncamI() to accept an options struct

[jack27121]

when initing a camera with specific settings, in one long line it becomes incomprehensible to type.
I think having it accept a struct with the specific settings like

var _options ={
 x: 0,
 y: 0,
 width: 400,
 height: 400,
 surface_extra_on: false,
 smooth_draw: false,
 smooth_zoom: false
}

cam1 = new stanncam(_options)

might be better. Waiting for others opinions