add support for Waveshare e-Paper 2.13 inch tri-color screen

datasheet is same as the 2.9" version, except resolution

src/epd2in13bc/graphics.rs

@@ -3,7 +3,7 @@ use crate::graphics::{Display, DisplayRotation};
 use embedded_graphics::pixelcolor::BinaryColor;
 use embedded_graphics::prelude::*;
 
-/// Full size buffer for use with the 2in9b/c EPD
+/// Full size buffer for use with the 2in13b/c EPD
 ///
 /// Can also be manually constructed and be used together with VarDisplay
 pub struct Display2in13bc {

src/epd2in13bc/mod.rs

@@ -64,9 +64,9 @@ use crate::traits::{
 };
 
 /// Width of epd2in13bc in pixels
-pub const WIDTH: u32 = 128;
+pub const WIDTH: u32 = 104;
 /// Height of epd2in13bc in pixels
-pub const HEIGHT: u32 = 296;
+pub const HEIGHT: u32 = 212;
 /// Default background color (white) of epd2in9bc display
 pub const DEFAULT_BACKGROUND_COLOR: Color = Color::White;