Move createBounds to measure.ts (#290)

* nit

* Move createBounds to measure

* Export createBounds

src/litegraph.ts

@@ -25,6 +25,7 @@ export { LGraphBadge, BadgePosition }
 export { SlotShape, LabelPosition, SlotDirection, SlotType }
 export { EaseFunction } from "./types/globalEnums"
 export type { SerialisableGraph, SerialisableLLink } from "./types/serialisation"
+export { createBounds } from "./measure"
 
 export function clamp(v: number, a: number, b: number): number {
     return a > v ? a : b < v ? b : v