dublicate: Add dpnp.linalg.solve() function

[vlad-perevezentsev]

This PR adds a missing dpnp.linalg.solve() function to calculate the solution to the system of linear equations with a square coefficient matrix A and multiple right-hand sides using oneapi::mkl::lapack::gesv
The implementation is written as a pybind11 extension above required LAPACK functions.

import dpnp

a = dpnp.array([[1, 2], [3, 5]])
b = dpnp.array([1,2])

dpnp.linalg.solve(a,b)
# array([-1.,  1.])

• Have you provided a meaningful PR description?
• Have you added a test, reproducer or referred to issue with a reproducer?
• Have you tested your changes locally for CPU and GPU devices?
• Have you made sure that new changes do not introduce compiler warnings?
• Have you checked performance impact of proposed changes?
• If this PR is a work in progress, are you filing the PR as a draft?

[github-actions]

View rendered docs @ https://intelpython.github.io/dpnp/index.html

[vlad-perevezentsev]

This PR is a duplicate of #1598