Ventoy 1.0.39 release

[longpanda]

• 2021/03/28 --- 1.0.39 release
  

1. Add VTOY_DEFAULT_KBD_LAYOUT option in global control plugin. Notes
   
   
2. Add F7  hotkey for text mode. Notes
   
3. Add a workaround for buggy bootloader's out-of-range access
   
4. Support latest CentOS Stream 8  distro. (#799)
   
5. languages.ini update
   
6. New iso support
   • veket_20.10.iso (Legacy + UEFI)
     
   • CentOS-Stream-8-x86_64-20210311-dvd1.iso (Legacy + UEFI)
     
   • Porteus-3.2-UD-i586-20170206.iso (Legacy)
     
   • kerio-control-installer-9.3.5-4367.iso (Legacy)