This PR resolves compilation warnings:
> warning: class template argument deduction for alias templates is a
C++20 extension [-Wc++20-extensions]

As for now DPNP is building with C++17 standard, and Class Template
Argument Deduction is available where only for a class template, but not
for a type alias. What support was added in C++20 standard.

Since there are currently no plans to move to the C++20 standard, the
code has been updated to conform to the C++17 standard.

The PR temporary mutes tests which are sporadically failing in GitHub
workflow on Windows.

This PR adds implementation of `dpnp.ndarray.view` method.
All places in the code with connected TODO comments were updated
properly.

Unmute FFT tests that are fixed.

`numpy.comat` was deprecated since 1.26.0 and remove in 2.3.0.
The PR removes dummy setting of `dpnp.compat` in external tests.