Chesscoin-qt-v1.5.0

v1.5.0

• Added block explorer widget
• Added checkpoints and updated RPC command "getcheckpoint"
• Updated some GUI designs

[Raspberry + ubuntu Tip]

• Chesscoin-qt for pi4 version only works on "Bullseys"
• If GUI doesn't start, then you should install libfuse2

  sudo apt install libfuse2

Test our programs themselves on Virustotal!
https://www.virustotal.com/gui/home/upload