Find{BLAS,LAPACK}: Implement BLA_SIZEOF_INTEGER

Changes:

1. NVHPC-BLAS was separated from Generic
2. Fujitsu_SSL2's, IBMESSL's, EML's LAPACKs use BLAS flags without searching of LAPACK library
3. New input variable BLA_SIZEOF_INTEGER for searching of BLAS/LAPACK with 64-bits integers API

Usage:

set(BLA_SIZEOF_INTEGER 8)
find_package(BLAS REQUIRED)
find_package(LAPACK REQUIRED)

BLA_SIZEOF_INTEGER is not implemented for the following:

• BLAS:
  1. goto2
  2. ATLAS
  3. PhiPACK
  4. SGIMATH
• LAPACK:
  1. goto2

For SunPerf, BLA_SIZEOF_INTEGER is not needed: other symbols are presented for 64-bits integers API

Fixes: #22493 (closed)
Topic-rename: find-blas-lapack-sizeof-integer