remplace WS_DATA_TYPE par EXT_WS_DATA_TYPE

@tsg_nc/tsg_ncattr.csv

@@ -33,4 +33,4 @@ char;char;char;char;char;char;float;float;float;char;char;char
 #;DATA_ACQUISITION;DATA ACQUISITION:;;popupmenu;IRD|GENAVIR|SHOM|CNRS;1;.1;.02;right;Acquisition data centre, ex: SHOM,IRD,GENAVIR,CNRS,...;#
 #;PROCESSING_CENTRE;PROCESSING CENTRE:;;popupmenu;ORE-SSS|CORIOLIS/IRD|CORIOLIS/SISMER;1;.1;.02;right;Processing data centre, ex: ORE-SSS,CORIOLIS,SISMER,...;#
 #;PROCESSING_STATES;PROCESSING STATES:;;popupmenu;0A|1A|2B|2B+|2C|2C+|3B;1;.1;.02;right;0A: DONNEE BRUTE|1A: DONNEE LOCALISEE;#
-#;WS_TYPE;WATER_SAMPLE_TYPE:;;popupmenu;OSIL|UNKNO|NA;3;.1;.02;right;Water sample: NA, Not Available;#
+#;EXT_WS_TYPE;EXTERNAL WATER SAMPLE TYPE:;;popupmenu;OSIL|UNKNO|NA;3;.1;.02;right;Water sample: NA, Not Available;#