1. adding upstream patches and bump port revision.
2. adding precompiled man by default rather than building.
3. adding regression-test target, several tests fails, though.
4. prepare for xlapack and now blas is secondary port of this port.
Submitted by: bf@
According to http://www.netlib.org/lapack/lapack-3.1.0.changes
> The interfaces to primary computational routines are fixed and
> will not be changed by minor LAPACK versions (e.g. 3.x).
> Primary routines are those prefixed by a precision and matrix
> type like SGERFS, CUNMQR, ZHEGV, etc., and these interfaces
> will remain the same for all LAPACK version 3 versions.
So I didn't change the version number of shared lib.
See also PR: 116166
