This ticket describes a TODO map for the new feature called "packages".

Package is a group of somehow connected pages that have an additional TOC. Each page is chosen for the package separately with a tag.

Each package has its own alphanumerical "id" that is used to identify it. Once we choose a package for at least one file, TF should create under the table of contents an additional frame called "Packages" with the links to the package content in the form of a separate TOC.

Available configuration options:

packagesEnabled - whether to enable packages or not.
recursivePackages - the package setting applies also to all the subchapters, if they do not have its own package definition.
hidePackages - allows to hide certain packages.

Packages do not affect the navigation between the pages.

During the rendering, the page should display the package name as a link to its TOC.