Added ability to extract PCB revision date in addition to BoM revision date

KiBOM/netlist_reader.py

@@ -425,6 +425,11 @@ class netlist():
     def getSheet(self):
         return self.design.getChild("sheet")
         
+    def getSheetDate(self):
+        sheet= self.getSheet()
+        if sheet == None: return ""
+        return sheet.get("date")
+        
     def getVersion(self):
         """Return the verison of the sheet info"""
         sheet = self.getSheet()