Constant T-matrix example add symmetries

This should work, but it douesn't. This is obviously a bug.

examples/rectangular_constant_tmatrix/modes/01b_realfreq_svd_sym.sh

@@ -0,0 +1,18 @@
+#!/bin/bash
+SCRIPTDIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null 2>&1 && pwd )"
+MISCDIR=../../../misc
+
+source ${SCRIPTDIR}/00_params.sh
+
+# try several lMaxes
+
+${MISCDIR}/lat2d_realfreqsvd.py \
+       	-B $BG_REFINDEX \
+	-b s${A1X_nm}e-9 s${A1Y_nm}e-9 \
+	-b s${A2X_nm}e-9 s${A2Y_nm}e-9 \
+	-p s${P1X_nm}e-9 s${P1Y_nm}e-9 \
+	-w ${BSPEC} -T ${TMATRIX} \
+	-k 0 0 \
+	-F 2.001 0.001 2.250  \
+	-g C4 \
+	-P