v1.1.4 Alpha version of Full KhiCAS Port

In this version we have a full KhiCAS port on ExistOS for HP39gII, thanks to @parisseb for his contribution

Please note that Alpha test version may have some unexpected bugs.

If you have problems with entering KhiCAS app on ExistOS, please try to delete /xcas floder on your HP39gII calculator.

此版本中我们移植了完整的KhiCAS功能，感谢 @parisseb 的贡献

请注意Alpha测试版本可能包含未预期的Bug。

如果你在进入KhiCAS APP时遇到问题，请尝试从你的HP39gII计算器上删除 /xcas 文件夹。

Full Changelog: build-114...v1.1.4