Commits on May 17, 2024

1. [api-minor] Re-factor the basic textLayer-functionality …

   This is very old code, and predates e.g. the introduction of JavaScript classes, which creates unnecessarily unwieldy code in the viewer.
   By introducing a new `TextLayer` class in the API, similar to how e.g. the `AnnotationLayer` looks, we're able to keep most parameters on the class-instance itself. This removes the need to manually track them in the viewer, and simplifies the call-sites.
   
   This also removes the `numTextDivs` parameter from the "textlayerrendered" event, since that's only added to support default-viewer functionality that no longer exists.
   
   Finally we try, as far as possible, to polyfill the old `renderTextLayer` and `updateTextLayer` functions since they are exposed in the library API.
   For *simple* invocations of `renderTextLayer` the behaviour should thus be the same, with only a warning printed in the console.

   

   Snuffleupagus committed May 17, 2024
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