UEFITool / UEFIExtract / UEFIFind NE A72

This release is mostly about UI improvements:

• Dell DVAR parser output now looks more consistent with previous NVRAM parsers
• Added "Copy item name" action, which is helpful when the name is obtained from GUID database, not UI section
• Added "Expand/collapse whole section" actions for better control of the visibility of expandable tree items
• Added "Hash / Hash body / Hash uncompressed" menu that calculates a chosen hash over the selected whole item / item body / item uncompressed data, shows a message box with that hash, and copies it into the clipboard.
• Several small bugfixes here and there

Thanks to @YangGangUEFI, @Ykidia, @MarsDoge, @cyrozap and @kocoman1 for their contributions to this release.