Reorganize the repository structure.

This will probably hose the whole thing - I'm sorry. But I've had better luck
with the to1check package with the repository being adjacent to the package
structure, rather than above.
Just keep the markdown README
Ignore some files in the package build.
Explicit arguments for gsub.
Ignore the Veerapathran data until I have permission to include it.
Document the data sets.
Fix data documentation.

If you put it in the package-doc file, it *seems* to need a NULL between
each block to actually create the .Rd files.
DESCRIPTION tweaks.
Add examples and switch qft.interp default verbosity to terse.

I use terse most of the time myself, and now it matches tspot.interp
Switch to lazy-loading data so the examples actually work.
Use dot delims instead of dashes - everywhere. Fixes #8.