mtlb_fread Matlab fread emulation function

## Description

There is no Scilab equivalent for Matlab `fread`. Scilab `mget` and Matlab `fread` behave differently in many cases, but they are equivalents in some cases.

The function `mtlb_fread(varargin)` is used by `mfile2sci` to replace `fread`. This function will determine the correct semantic at run time. It is sometimes possible to replace calls to `mtlb_fread` by calls to mget.

Caution: `mtlb_fread` has not to be used for hand coded functions.

## See also

- mget