Updated some UI.
Fixed some bug.
The Calculator for Developer
Developer Calc includes the following features:
■ Binary, octal, decimal, and hexadecimal in one screen
■ The maximum value : 0x0FFF FFFF FFFF FFFF
■ The minimum value : 0xF000 0000 0000 0000
■ The large 19-digit display of decimal
■ Conversion reset ON/OFF
