canvas for main view screen about return-to-mars HOT 2 CLOSED

sub tasks:
--add an svg for the ship
--set the center and scaling of the canvas
--move objects on canvas
--trigger the movement and redrawing when state/context changes

from return-to-mars.

all of the above tasks are completed.

• the ship needs to rotate to reflect the helm control.

nice to have:

• the canvas displays the engine burn when the user fires the engine
• the canvas shows an outline of the viewscreen border moving inward when the view pans out
• the canvas resizes responsively to the window size

from return-to-mars.