* Updating SuperLU package file with ability to build version 4.3 (before they added cmake) with external blas or internal blas, and added capability to build the latest version 5.2.1 (with cmake) with internal blas.
* Updating SuperLU package file with suggested changes, i.e. reorganizing installation methods based on version, adding cmake dependency when necessary, removing any use of internal blas, and also adding fpic variant.
* Fixing flake8 failures.
* Turned <provider>_libs into an iterable
Modifications :
- added class LibraryList + unit tests
- added convenience functions `find_libraries` and `dedupe`
- modifed non Intel blas/lapack providers
- modified packages using blas_shared_libs and similar functions
* atlas : added pthread variant
* intel packages : added lapack_libs and blas_libs
* find_library_path : removed unused function
* PR review : fixed last issues
* LibraryList : added test on __add__ return type
* LibraryList : added __radd__ fixed unit tests
fix : failing unit tests due to missing `self`
* cp2k and dependecies : fixed blas-lapack related statements in package.py
