Fix a crash when calling take() for input array with non-integer values

[antonwolfy]

DPNP map of kernel functions for take() was updated in scope of #1172: an input array of indices has to be of an integer type. For other types of indices data, DPNP backend function get_dpnp_function_ptr() will raise a runtime exception pointing on the types mismatching.
Numba-DPEX had missing "except +" notation while declaring get_dpnp_function_ptr() in cython file. Thus the exception from DPNP backend led to a core dump in Numba-DPEX instead of printing the error.

Numba-DPEX shall explicitly pass a type of input array for indices while calling DPNP backend, rather than passing "None". It will help to select a proper kernel function, since DPNP has to know how incoming array is placed in the memory to avoid any potential memory corruption issue while accessing it.

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