Function: Multi Dimension Indexer

A Function that returns the flat index of a N dimensions array.

_indices: Array containing dimension indices.¹
_limits: Array containing dimension size.¹

¹: _indices and _limits size must match. indices must be within dimension size.

_offset: the flat 1D index.

Release Notes: added functions for 2d/3d for lightweight indexing, better examples.
Release Notes: removed some extra redundant stuff.

Open-source script

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