Implementation of convolve

[AlexanderKalistratov]

Add implementation of dpnp.convolve. Implementation is mostly based on already existing functionality developed for dpnp.correlate
Similar to scipy.signal.convolve method keyword is introduced, but unlike scipy.signal.convolve dpnp.convolve works only with 1-d arrays.

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[github-actions]

View rendered docs @ https://intelpython.github.io/dpnp/pull/2205/index.html

[github-actions]

View rendered docs @ https://intelpython.github.io/dpnp/pull/2205/index.html

[coveralls]

coverage: 72.228% (+0.08%) from 72.152%
when pulling 4bb43c0 on convolve
into 04bfac7 on master.

[github-actions]

Array API standard conformance tests for dpnp=0.18.0dev0=py312he4f9c94_66 ran successfully.
Passed: 1197
Failed: 0
Skipped: 14

[AlexanderKalistratov]

@antonwolfy please review

[AlexanderKalistratov]

@vtavana thanks for the review

please re-review.

[antonwolfy]

It needs to be done prior lines#477-486, because should check type of input arrays first. Otherwise there might be AttributeError exception raised:

np.convolve(1, 2)
---------------------------------------------------------------------------
AttributeError                            Traceback (most recent call last)
Cell In[2], line 1
----> 1 np.convolve(1, 2)

File ~/code/dpnp/dpnp/dpnp_iface_statistics.py:477, in convolve(a, v, mode, method)
    379 def convolve(a, v, mode="full", method="auto"):
    380     r"""
    381     Returns the discrete, linear convolution of two one-dimensional sequences.
    382     The convolution operator is often seen in signal processing, where it
   (...)    474
    475     """
--> 477     if a.size == 0 or v.size == 0:
    478         raise ValueError(
    479             f"Array arguments cannot be empty. "
    480             f"Received sizes: a.size={a.size}, v.size={v.size}"
    481         )
    482     if a.ndim > 1 or v.ndim > 1:

AttributeError: 'int' object has no attribute 'size'