Release 0.2.0

Update to work with Solid 1.0 and streamline the interface with new directives.

Added

• Update createDraggable, createDroppable and createSortable to provide
  a custom directive. These can be used with the Solid use:___ syntactic sugar
  for common usage setup - no need to pass refs and props around:

const MyComponent = (props) => {
  const draggable = createDraggable({ id: props.id });
  return <div use:draggable>Drag me!</div>;
};

If finer control needed, the underlying primitives are accessible by property
lookup on the directive::

const MyComponent = (props) => {
  const draggable = createDraggable({ id: props.id });
  return (
    <div ref={draggable.ref}>
      <div {...draggable.dragActivators}>Drag Handle</div>
      Drag me!
    </div>
  );
};

• Automatically detect and register usage of DragOverlay. Add to
  DragDropContext state a usingDragOverlay property that can be checked.
• Return a new function displace as part of the DragDropContext that can be
  used to set the transform for a droppable or draggable. See usage in
  createSortable for example.

Changed

• Update to work with Solid 1.0! This is a breaking change that requires
  updating peer dependency of Solid to 1.0 or greater.
• Refactor isActiveDraggable and isActiveDroppable to appear as resolved
  properties rather than functions to call (this is more consistent with the
  rest of interface). E.g. draggable.isActiveDraggable()
  -> draggable.isActivateDraggable.
• Refactor sensor interface to use event type rather than handler name. For
  example, make createPointerSensor use pointerdown rather than
  onPointerDown for activation. As part of this, add a asHandlers option to
  draggableActivators to control whether to return object with on___ form or
  not (default is false).
• Rename occurrences of translate to transform, which feels a more
  appropriate name. E.g. translateStyle should now be transformStyle and the
  translate property returned from create___ calls should be called
  transform.
• Assume valid transform value is always present. In particular,
  transformStyle no longer checks for a null transform value.
• Improve vertical sort algorithm to better handle arbitrary gaps (such as those
  created by the CSS gap property on flexbox). As part of this, remove the now
  redundant outerHeight and outerWidth properties from the layout data
  returned by elementLayout.
• Update README.md to reflect simpler directive interface for draggables and
  droppables.

Removed

• Remove support for explicitly managing droppable disabled state. The current
  implementation feels limiting and potentially confusing. For example, it
  prevents detecting when a draggable is over a disabled droppable and styling
  it appropriately. Note that a similar effect to disabled can be achieved by
  determining drop suitability in onDragEnd.