Add print format macros for 64bit integer builds to LAPACKE (Reference-LAPACK PR 700)

Add a BLAS3-based triangular Sylvester equation solver (Reference-LAPACK PR 651)

long's in windows are 4 bytes (MSVS, intel compilers). Use int64_t and int32_t
to ensure 8 byte integers for ILP interface.

support 8 byte integer flag for intel ifort compiler

Based on how the surrounding functions in lapack.h are handling the
parameters, particularly the ?ggsv?3-variants of the affected functions

* Fix misnaming of LAPACK_?ggsvp and ?ggsvd function prototypes as LAPACKE_

* Drop the LAPACKE matrix_layout parameter from the argument lists, change ints to pointers and add missing work arguments.

fixes #2510

* Update make.inc entries for LAPACK 3.9.0

Reference-LAPACK PR 347 changed some variable names and relative paths

* Update LAPACK to 3.9.0

* Add new functions from LAPACK 3.9.0

* Add new functions from LAPACK 3.9.0

* Restore LOADER command 

as it makes it easier to specify pthread as needed

* Restore LOADER

* Restore EIG/LIN prefixes in cmdbase

* add binary path to lapack_testing.py call

* Restore OpenMP version check

* Restore OpenMP version check

* Restore fix for out-of-bounds array accesses

from #2096

for #1811