Add support for "out" parameter in dot function

[adarshyoga]

The pairwise distance dpnp implementation calls dpnp.dot to perform matrix multiplication and passes the output matrix in the out parameter to update the output in-place. See below code snippet.

import dpnp as np; np.dot(X1, X2.T, D)

How to reproduce:

1. Follow instructions to setup dpbench
2. Run pairwise distance - python -c "import dpbench; dpbench.run_benchmark("pairwise_distance")

[antonwolfy]

Missing support of out parameter in all affected dpnp functions has been implemented in #1365, #1341, #1332, #1329, #1327.