Method lsp_weight_quant

LSP weighted quantification Note: x is modified @param x @param xs @param weight @param ws @param cdbk @param nbVec @param nbDim @return the index of the best match in the codebook (NB x is also modified).

(final float[] x,
                                        final int xs,
                                        final float[] weight,
                                        final int ws,
                                        final int[] cdbk,
                                        final int nbVec,
                                        final int nbDim)