organization of documents, resources and snippets

[ax-sc]

In Documents, Resources and Snippets it would be helpful to provide tools to be able to organize the items. When using doku in production the number of items increases quickly so introducing one or better multiple of the following features for both documents as well as resources would improve usability:

• folder structure for documents and resources
• tags for documents and resources (and the ability to filter for specific tags)
• search-functionality (name of documents, filename of resources, name of resources, tags)

edit: added snippets