Given two maps, Map, merge the two into a new map, Map where keys in Map$2,$

$*$ and their Integer values, are added to the Integer values of matching keys in Map$1.$ Return the new map.

$*$

$*$ Unmatched keys and their Integer values in Map$2$ are simply added to Map$1.$

$*$

$*$ consolidateInventory$(\{"$SKU$1"$: $100,$ "SKU$2"$: $53,$ "SKU$3"$: $44\}\{"$SKU$2"$:$11,$ "SKU$4"$: $5\})$

$*->\{"$SKU$1"$: $100,$ "SKU$2"$: $64,$ "SKU$3"$: $44,$ "SKU$4"$: $5\}$

$*$