ANSI Escape Sequence Proposal

Based on https://en.wikipedia.org/wiki/ANSI_escape_code

The following escape codes are defined:

    self.csi_codes = {
        "A": self._cursor_up
        , "B": self._cursor_down
        , "C": self._cursor_forward
        , "D": self._cursor_back
        , "E": self._cursor_next_line
        , "F": self._cursor_previous_line
        , "G": self._cursor_horizontal_absolute
        , "H": self._cursor_position
        , "J": self._erase_in_display
        , "K": self._erase_in_line
        , "S": self._scroll_up
        , "T": self._scroll_down
        , "f": self._cursor_position  # Horizontal Vertical Position: same as Cursor Position
        , "m": self._select_graphic_rendition
        , "i": self._decode_aux_port
        , "n": self._device_status_report
        , "s": self._save_cursor_position
        , "u": self._restore_cursor_position
    }

They should map to the following erika hex codes (where n is an int parameter):

Code	Erika [HEX]	Description
n A	n 2 `76H`	Cursor Up
n B	n 2 `75H`	Cursor Down
n C	n 2 `73H`	Cursor Forward (right)
n D	n 2 `74H`	Cursor Back (left)
n E	n * `77H`	Cursor Next Line Beginning (same as n * `\n`)
n F	n 2 `76H` + `78H`	Cursor Previous Line Beginning

I suggest using the following codes in addition

Code	Erika [HEX]	Description
a	76H	halfstep up
b	75H	halfstep down
c	73H	halfstep right
d	74H	halfstep left
v (could use `f`since it's redundant with H, but would "break" the standard)	82H	Microstep (1/20th row) up
e	81H	Microstep (1/20th row) down
0t	7DH	set default TABs
1t	7AH	set TAB
2t	7BH	clear TAB
3t	7CH	clear all TABs
0M	80H	clear margins
1M	7EH	set margin left
2M	7FH	set margin right
0L	84H	1x line spacing
1L	85H	1.5x line spacing
2L	86H	2x line spacing
0l (could also use alternate fonts for this or bold /faint/normal)	87H	100 chars / line (10 chars / inch)
1l	88H	120 chars / line (12 chars / inch)
2l	89H	150 chars / line (15 chars / inch)
0k	91H	keyboard echo off
1k	92H	keyboard echo on

ASCII [HEX]	Erika[HEX]	Description
20	71H	Space
08	72H	Back Space
0A (`\n`)	77H	New Line (carriage return + new line)
0D(`\r`)	78H	Carriage Return
09 (`\t`)	79H	HT Horizontal TAB

Chaostreff-Potsdam / erika3004

ANSI Escape Sequence Proposal #22