src/include/memory.h, src/maths/sparse/spdefs.h: Moved definitions
of complex into complex.h. There are three different ways to
declare a complex number in Spice. We need further work to reduce
this to only one.
* src/maths/cmaths/Makefile.am, src/maths/cmaths/.cvsignore,
src/maths/cmaths/test_cx_ph.c: Added a new test and updated the
corresponding support files.
arno