added LSL2 stored procedures

LSL2/STPROC/SUPPLIED_BY_CONV.txt

@@ -0,0 +1,25 @@
+SUBROUTINE SUPPLIED_BY_CONV(ConvType, DataIo, SubrLabel, ReturnedValue)
+*
+
+$insert logical
+
+equ valid$         to 0    ;* successful
+equ invalid_msg$   to 1    ;* bad data       -   print error message window
+equ invalid_conv$  to 2    ;* bad conversion -          "         "
+equ invalid_nomsg$ to 3    ;* bad but do not print the error message window
+
+status() = Valid$
+begin case
+   case ConvType = 'ICONV'
+        ReturnedValue = DataIo
+   case ConvType = 'OCONV'
+        begin case
+           case DataIo = 'L'
+              ReturnedValue = 'EPI Services'
+           case DataIo = 'C'
+              ReturnedValue = 'Customer'
+        end case
+   case otherwise$
+        status() = invalid_msg$
+end case
+return