Make full build iife only, with external geotiff.js and ol-mapbox-style

src/ol/layer/MapboxVector.js

@@ -130,6 +130,9 @@ class ErrorEvent extends BaseEvent {
  * On configuration or loading error, the layer will trigger an `'error'` event.  Listeners
  * will receive an object with an `error` property that can be used to diagnose the problem.
  *
+ * **Note for users of the full build**: The `MapboxVectorLayer` requires the
+ * [ol-mapbox-style](https://github.com/openlayers/ol-mapbox-style) library to be loaded as well.
+ *
  * @param {Options} options Options.
  * @extends {VectorTileLayer}
  * @fires module:ol/events/Event~BaseEvent#event:error

src/ol/source/GeoTIFF.js

@@ -365,6 +365,9 @@ function getMaxForDataType(array) {
 /**
  * @classdesc
  * A source for working with GeoTIFF data.
+ * **Note for users of the full build**: The `GeoTIFF` source requires the
+ * [geotiff.js](https://github.com/geotiffjs/geotiff.js) library to be loaded as well.
+ *
  * @api
  */
 class GeoTIFFSource extends DataTile {