Builds using the specified BridgeContext and element, the
specified graphics node. This is called after all the children
of the node have been constructed and added, so it is safe to
do work that depends on being able to see your children nodes
in this method.
ctx - the bridge context to use
e - the element that describes the graphics node to build
node - the graphics node to build
Returns true if the bridge handles container element, false
Returns the Bridge instance to be used for a single DOM
element. For example, a static Bridge (i.e., a Bridge for
static SVG content) will always return the same instance.
A dynamic Bridge will return a new instance on each call.
FIX ME: Move to Bridge