Function ImFont_RenderText
pub unsafe extern "C" fn ImFont_RenderText(
self_: *mut ImFont,
draw_list: *mut ImDrawList,
size: f32,
pos: ImVec2,
col: u32,
clip_rect: ImVec4,
text_begin: *const i8,
text_end: *const i8,
wrap_width: f32,
cpu_fine_clip: bool,
)