ver 0.8 : Add config system

ver 0.8

now switching character will refresh text page.

add config system:

need_help=True

// open window or not

title_screen_text=Game

// set game title

window_caption=Still_loading:

// set game caption

dialogue_file_name=default

// default dialogue file name

shader_default=2

// shader default: 0, no shader. 1 crt shader. 2 scanline.

default_lang=english

// now has english, schinese, tchinese

ending=Nothing there

// ending line