ADIF v3.1.1 compliance

Note that FST4 QSOs are logged with MODE=MFSK and SUBMODE=FST4. The
new bands 8m and 5m are recognized. The ADIF header is expanded with
program and time stamp information.

models/Bands.cpp

@@ -28,7 +28,9 @@ namespace
     {"15m",   21000000u,  	21450000u},
     {"12m",   24890000u,  	24990000u},
     {"10m",   28000000u,  	29700000u},
+    {"8m",  	40000000u,  	45000000u},
     {"6m",  	50000000u,  	54000000u},
+    {"5m",  	54000001u,  	69900000u},
     {"4m",  	70000000u,  	71000000u},
     {"2m",  	144000000u,   148000000u},
     {"1.25m", 222000000u,   225000000u},