Add generic page around wrapper client libraries

[kwin]

The only mention of wrapper client libraries (required due to Adobe-Consulting-Services/acs-aem-commons#1614) are at https://adobe-consulting-services.github.io/acs-aem-commons/pages/releases/4-0-0.html (where most links do no longer work). There should be a generic page (for all version >= 4.0) which lists

1. the default AEM client library categories to extend per use case
   1. outer Touch UI editor
   2. page (inside iframe) if not in wcmmode!=disabled
   3. component dialogs (specific, all)
   4. page properties (via page editor, via sites, via page creation wizard)
2. limitations with regards to embeds (i.e. nested embeds not working)

[kwin]

1. IMHO the correct categories to use are
   1. cq.authoring.editor.sites.page.hook (https://docs.adobe.com/content/help/en/experience-manager-65/developing/extending-aem/customizing-page-authoring-touch.html)
   2. cq.authoring.page
   3. use extraClientlibs for component specific JS/CSS (https://docs.adobe.com/content/help/en/experience-manager-65/developing/components/developing-components.html#creating-a-client-library-for-style-and-behavior), or category cq.authoring.dialog if JS/CSS should be loaded for all dialogs (not recommended)
   4. see above for page editor and sites, TODO: unclear which category to use for page creation wizard

[kwin]

@davidjgonzalez WDYT about the categories, especially the one to use for the page creation wizard?

[davidjgonzalez]

@kwin are you thinking a page documenting clientlibs categories in general and which can be used to hook into various aspects of the AEM UI? Why did you stop at the 4 use-cases you listed, vs things like DAM UI, or other aspects of AEM UI?

FWIW - the categories you list look right (and dont recall the page wizard CL category off the top of my head)..

[kwin]

IMHO it makes sense to document those categories centrally instead of per feature (especially as some JS might make sense in multiple use cases). As I don’t know of any other documentation page listing the categories it would make sense to maintain that at acs-aem-commons. The list is not complete but we can extend it once such a page is in place.

[davidjgonzalez]

@kwin sure - I think that would be good documentation to exist. In terms of using a feature, I'd rather just have the snippet that tells me exactly where it needs to go. I think asking users of features to try to understand where the right place to hook into is not good though; basically I think both could live in parallel, and the consolidated list would be more for feature-contributors to hook understand where to hook in.
Ideally, this would be documented my Adobe Docs but I don't expect that to happen.