Unimap
======
universal keymapping framework
using logical 128-key keyboard layout independent from physical keyboad matrix

unimap is actually an actionmap whose size is row:8xcol:16.

/* Keymapping with 16bit action codes */
extern const action_t actionmaps[][UNIMAP_ROWS][UNIMAP_COLS];

/* Universal 128-key keyboard layout(8x16)
        ,-----------------------------------------------.
        |F13|F14|F15|F16|F17|F18|F19|F20|F21|F22|F23|F24|
,---.   |-----------------------------------------------|     ,-----------.     ,-----------.
|Esc|   |F1 |F2 |F3 |F4 |F5 |F6 |F7 |F8 |F9 |F10|F11|F12|     |PrS|ScL|Pau|     |VDn|VUp|Mut|
`---'   `-----------------------------------------------'     `-----------'     `-----------'
,-----------------------------------------------------------. ,-----------. ,---------------.
|  `|  1|  2|  3|  4|  5|  6|  7|  8|  9|  0|  -|  =|JPY|Bsp| |Ins|Hom|PgU| |NmL|  /|  *|  -|
|-----------------------------------------------------------| |-----------| |---------------|
|Tab  |  Q|  W|  E|  R|  T|  Y|  U|  I|  O|  P|  [|  ]|  \  | |Del|End|PgD| |  7|  8|  9|  +|
|-----------------------------------------------------------| `-----------' |---------------|
|CapsL |  A|  S|  D|  F|  G|  H|  J|  K|  L|  ;|  '|  #|Retn|               |  4|  5|  6|KP,|
|-----------------------------------------------------------|     ,---.     |---------------|
|Shft|  <|  Z|  X|  C|  V|  B|  N|  M|  ,|  ,|  /| RO|Shift |     |Up |     |  1|  2|  3|KP=|
|-----------------------------------------------------------| ,-----------. |---------------|
|Ctl|Gui|Alt|MHEN|     Space      |HENK|KANA|Alt|Gui|App|Ctl| |Lef|Dow|Rig| |  0    |  .|Ent|
`-----------------------------------------------------------' `-----------' `---------------'
App:         Windows Menu key
Gui:         Windows key, Mac ⌘ key or Meta key
VDn Vup Mut: Volume control
< #:         ISO keys(in UK legend)
KP=:         Keypad = for Mac
KP,:         Brazilian Keypad Comma
JPY:         Japanese Yen(￥)
RO:          Japanese ろ(Ro) or Brazilian /(Slash)
MHEN:        Japanese 無変換(Non Conversion) or Korean Hanja
HENK:        Japanese 変換(Conversion) or Korean Hangul/English
KANA:        Japanese かな(Hiragana/Katakana)
https://en.wikipedia.org/wiki/Keyboard_layout#Japanese
https://en.wikipedia.org/wiki/Keyboard_layout#Hangul_.28for_Korean.29
*/


when refering to keymapping physical matrix position needed to be translated into logical one on unimap
the translation is defined in unimap array

row and col of unimap positon is encoded as follows
position = (row << 4) | col

// table translates matrix to universal keymap
extern const uint8_t unimap_trans[MATRIX_ROWS][MATRIX_COLS];