add text escape sequences

[PatrykPaluch]

• Add the ability to write "escape sequences" something similar to ANSI escape code. Each sequence/code should accessible as afunction and automatically processed in Logger::write_str.
• Create documentation for the escape sequences codes (or refer to ANSI escape code and document which sequences are available)

Something like

pub fn set_fg_color(&mut self, color: Color) { ... }
pub fn write_str(&mut self, s: &str) {
  if /* \eRED */ {
    self.set_color(Color::RED);
  }
  //...
}

I think we can implement the following:

• Set text color (from predefined list of colors) -> add ability to change text color #22
• Set cursor position -> add method to set cursor at specific position #21
• Move cursor (aka set relative position) -> add method to set cursor at specific position #21 ??