NE A27

- thanks to NVAR extended headers, item tails are back
- fixed a bug with "Extract uncompressed" producing incorrect results
for multiple sections
- fixed detection and parsing of NVRAM external defaults file
- fixed "Extract as is" on NVAR entries not including extended header
- small bugfixes and refactorings

UEFITool/uefitool.cpp

@@ -17,7 +17,7 @@
 UEFITool::UEFITool(QWidget *parent) :
 QMainWindow(parent),
 ui(new Ui::UEFITool), 
-version(tr("0.30.0_alpha26"))
+version(tr("0.30.0_alpha27"))
 {
     clipboard = QApplication::clipboard();