invalid kam association when nodes are invalid BEL terms

[abargnesi]

An Associate to KAM operation will produce invalid associations if there is at least one cytoscape node without a valid BEL term identifier. The issue is due to assumption that the cytoscape node array is congruent to the resolve node array. This is true in the general case but fails to hold when cytoscape nodes are not mappable as BEL terms.

A fix should take invalid cytoscape nodes into account when updating resolved nodes. It is also worth asserting that the resolved node array is congruent to the cytoscape node (mappable BEL nodes) array.