UZERO with verified conjugates and pointers

addinverse transforms the 2 column UZERO to 3 column
uzero where the third column is the index of the conjugate.
It also removes any rows that do not have a conjugate in
the table.  Verifytable was updated to check that the
sequence computes the matrix (after global phase is factored out)
and that the conjugate row is, in fact a conjugate.
Bug fixes and Performance improve. for SK compiler

Continued work on QIASMsingle/compile, the SK compiler.  The
table in uzero.mat is now setup with a proper set of initial
sequences and their conjugates.  skalgo wasn't computing the
conjugate of group commutator sequences; that's fixed.  Some
more parallelism was added to the creation of the QASMseq
that results from the compiler.  This only results in a minor
speedup.  It seems that the current compiler works some of the
time.  Not all gates will meet approximation requirements, but
it seems the majority will.  It's still fairly slow, but it seems
like you can get a recursion depth 4 or 5 approximation in about
one minute (on my laptop using parallel).

In skalgodata several files were added that can be used in
analyzing and testing SK compiler related functions.
QIASMsingle/compile analysis

The SK compiler used by QIASMsingle has several
functions for testing, profiling, and algorithm
analysis in skalgodata.  It seems that on the
average the algorithm behaves admirably down to
recursion depth 4. At depth 5 the approximation
gets much much worse.  So, the current parameters are
set up around the idea that circuit error <= .009
is the target and the recursion depth should bottom
out at 4 unless you're compiling a number of gates
that you're just not going to sit around for.

The speed is still pretty slow. Decent speeds up
are obtained by loading the parallel package, but
we're still looking at something like a minute a gate
when run on 4/8 cores of my i7.  It will have to do for now.
Beta Release

First beta version.  The QASM compiler still needs some attention,
but for now it will do. Resolves #12