Spliting annpacks.tex into multiple .tex files for easier editing.

Up until this commit, the draft was written in a single block. In order to
facilitate editing and git repository maintenance, I am splitting it into
distinct files without altering the concepts laid out so far in any way.

When necessary, distinct sections will be given distinct branches and PDF
files that are to be released should occur only during full merges of
all branches into master.

Each file has the CC license header of the original master document.