using now own shred impl with check if the complete drive is full of zeros after shredding

include/drive.h

@@ -25,6 +25,7 @@ public:
     bool bWasShredded = false;
     bool bWasDeleteted = false;
     bool bIsOffline = false;
+    uint32_t u32DriveChecksumAferShredding = 0U;
 
 private:
     string sPath;