Hi everyone,

Putty is a popular terminal console software in windows and it support various types of terminal keyboard type. I would like to add most of the type support. Here is the key map info. Hope to get comments. Here is the type and mapping table:
Putty function key map:
  +=========+======+===========+=============+=============+=============+
  |         | EFI  |           |             |             |             |
  |         | Scan |           |             |  Normal     |             |
  |   KEY   | Code |  VT100+   | Xterm R6    |  VT400      | Linux       |
  +=========+======+===========+=============+=============+=============+
  | F1      | 0x0B | ESC O P   | NONE        | ESC [ 1 1 ~ | ESC [ [ A   |
  | F2      | 0x0C | ESC O Q   | NONE        | ESC [ 1 2 ~ | ESC [ [ B   |
  | F3      | 0x0D | ESC O R   | ESC O R     | ESC [ 1 3 ~ | ESC [ [ C   |
  | F4      | 0x0E | ESC O S   | ESC O S     | ESC [ 1 3 ~ | ESC [ [ D   |
  | F5      | 0x0F | ESC O T   | ESC [ 1 5 ~ | ESC [ 1 5 ~ | ESC [ [ E   |
  | F6      | 0x10 | ESC O U   | ESC [ 1 7 ~ | ESC [ 1 7 ~ | ESC [ 1 7 ~ |
  | F7      | 0x11 | ESC [ V   | ESC [ 1 8 ~ | ESC [ 1 8 ~ | ESC [ 1 8 ~ |
  | F8      | 0x12 | ESC [ W   | ESC [ 1 9 ~ | ESC [ 1 9 ~ | ESC [ 1 9 ~ |
  | F9      | 0x13 | ESC [ X   | ESC [ 2 0 ~ | ESC [ 2 0 ~ | ESC [ 2 0 ~ |
  | F10     | 0x14 | ESC [ Y   | ESC [ 2 1 ~ | ESC [ 2 1 ~ | ESC [ 2 1 ~ |
  | Escape  | 0x17 | ESC       | ESC         | ESC         | ESC         |
  | F11     | 0x15 | ESC O Z   | ESC [ 2 3 ~ | ESC [ 2 3 ~ | ESC [ 1 3 ~ |
  | F12     | 0x16 | ESC O [   | ESC [ 2 4 ~ | ESC [ 2 4 ~ | ESC [ 1 4 ~ |
  +=========+======+===========+=============+=============+=============+

For Xterm R6 F1 and F2, it is descripted as ESC+O+P and ESC+O+Q, but it doesn't work on UEFI shell. Same with the SCO mode. So I would ignore the unworkable key map.
Info refer to https://www.ssh.com/ssh/putty/putty-manuals/0.68/Chapter4.html#config-funkeys

Thanks,
Zhichao