ver 5.02 released

Fixed

• Xinput / ps4 controller key icon display.

• Fixed a bug that the "check" key icon displayed during the stage was the "decision" key at the UI phase.

• Fixed bug that Launcher weapon burst num show zero.

• Fixed bug that status is not initialized when skill tree reset.

• Fixed some tutorial messages.

• Fixed a bug that damage was 1 for flamethrower / laser type weapon.

• Fixed a bug that the exp can not be acquired with the flamethrower / laser type weapons.