PDF niceties in documentation

[wspr]

Many (most) of the packages are not compiled with hypdoc, so they're missing niceties such as PF bookmarks and hyperlinks. Should be fixed as each package is updated. Here's a list of packages that need attention:

• abstract
• appendix
• bez123
• booklet
• changepage
• combine
• epigraph
• hanging
• hyphenat
• layouts
• makecmds
• newfile
• pagenote
• romannum
• stdclsdv
• titling
• tocbibind
• tocloft
• tocvsec2
• xtab