SamFw Tool 4.8

[SAMSUNG]
- Add KG Unlock (Untested)

- Hide tool to traybar when close (No need check update everytime run the tool)
- Add login direct on tool
- Fix check update error for some users
- Fix some bugs when unlock paid service
- Fix connect API error for some users
- Fix some bugs

SamFw Tool 4.8.1

Hotfix the change CSC error

#samfwtool , #freetool