Function computeAccelerationToTarget

computeAccelerationToTarget(
    targetPos: Geometry.Point,
    currentPos: Geometry.Point,
    opts?: TargetOpts,
): Geometry.Point | { x: 0; y: 0 }
Returns the acceleration to get from currentPos to targetPos.
Parameters
- targetPos: Geometry.Point
  Target position
- currentPos: Geometry.Point
  Current position
- opts: TargetOpts = {}
  Options
Returns Geometry.Point | { x: 0; y: 0 }
Example: Barebones usage:
```
const accel = Forces.computeAccelerationToTarget(targetPos, currentPos);
const vel = Forces.computeVelocity(accel, currentVelocity);

// New position:
const pos = Points.sum(currentPos, vel);
```
Example: Implementation:
```
const direction = Points.subtract(targetPos, currentPos);
const accel = Points.multiply(direction, diminishBy);
```