GGU-TIME-GRAPH: Hydrographs menu

• GGU-TIME-GRAPH: "Editor 1" menu item
• GGU-TIME-GRAPH: Start dialog box
• GGU-TIME-GRAPH: Editor box for selected measuring point
• GGU-TIME-GRAPH: "Edit measured data" button
• GGU-TIME-GRAPH: "Modify hydrograph" button
• GGU-TIME-GRAPH: "Import ASCII file" button
• GGU-TIME-GRAPH: "Statistics" button
• GGU-TIME-GRAPH: "Special" button
• GGU-TIME-GRAPH: "Monthly values" button
• GGU-TIME-GRAPH: "Editor 2" menu item
• GGU-TIME-GRAPH: "Time axis" menu item
• GGU-TIME-GRAPH: "Measured data axis etc." menu item
• GGU-TIME-GRAPH: "Select hydrographs" menu item
• GGU-TIME-GRAPH: "Display hydrographs" menu item
• GGU-TIME-GRAPH: "Swap hydrographs" menu item