Enable pre-commit pylint check in linalg module (#1827)

* Enable pre-commit pylint check in linalg module

* Split helping linalg functions into smaller functions

* Apply pylint rules to linalg interface

* Resolve reshape issue in _norm_tuple_axis

* Update dpnp/linalg/dpnp_iface_linalg.py

Co-authored-by: vtavana <120411540+vtavana@users.noreply.github.com>

---------

Co-authored-by: vtavana <120411540+vtavana@users.noreply.github.com>

Author: antonwolfy

.pre-commit-config.yaml

@@ -100,4 +100,4 @@ repos:
             "--disable=redefined-builtin",
             "--disable=unused-wildcard-import"
             ]
-        files: '^dpnp/dpnp_iface.*'
+        files: '^dpnp/(dpnp_iface.*|linalg)'

dpnp/linalg/__init__.py

@@ -24,6 +24,16 @@
 # THE POSSIBILITY OF SUCH DAMAGE.
 # *****************************************************************************
 
+"""
+``dpnp.linalg``
+================
+
+The DPNP linear algebra functions rely on BLAS and LAPACK to provide efficient
+low level implementations of standard linear algebra algorithms.
+
+"""
+
+
 from dpnp.linalg.dpnp_iface_linalg import *
 from dpnp.linalg.dpnp_iface_linalg import __all__ as __all__linalg