[WIP] Update LAPACK to 3.9.0 (#2353)

* 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

lapack-netlib/SRC/dtgsy2.f

@@ -71,7 +71,7 @@
 *>             R  * B**T + L  * E**T  = scale * -F
 *>
 *> This case is used to compute an estimate of Dif[(A, D), (B, E)] =
-*> sigma_min(Z) using reverse communicaton with DLACON.
+*> sigma_min(Z) using reverse communication with DLACON.
 *>
 *> DTGSY2 also (IJOB >= 1) contributes to the computation in DTGSYL
 *> of an upper bound on the separation between to matrix pairs. Then
@@ -85,7 +85,7 @@
 *> \param[in] TRANS
 *> \verbatim
 *>          TRANS is CHARACTER*1
-*>          = 'N', solve the generalized Sylvester equation (1).
+*>          = 'N': solve the generalized Sylvester equation (1).
 *>          = 'T': solve the 'transposed' system (3).
 *> \endverbatim
 *>