* Bugfix refactor * Added 60_iso layout to rules.mk * Added sample ISO-UK keymap * Keymap refactor * Fixes per @andys8
weeheavy's DZ60 split spacebar layout
- 2u left shift
- arrow cluster
- split spacebar with a center key
Layouts
The base layout is ANSI QWERTY.
Key sizes (ASCII keyboards below match this scale):
1u    = 4 chars  = |  |
1.25u = 5 chars  = |   |
1.5u  = 6 chars  = |    |
1.75u = 7 chars  = |     |
2u    = 8 chars  = |      |
2.25u = 9 chars  = |       |
2.75u = 11 chars = |         |
6.25u = 25 chars = |                       |
Layer 0: Base layout
Specialities:
- Arrow cluster
- FN1: access to layer 1
- F2: access to layer 2
,----------------------------------------------------------.
|Es||1 ||2 ||3 ||4 ||5 ||6 ||7 ||8 ||9 ||0 ||- ||= || Bksp |
|----------------------------------------------------------+
|Tab ||Q ||W ||E ||R ||T ||Y ||U ||I ||O ||P ||[ ||] || \  |
|----------------------------------------------------------+
|Caps ||A ||S ||D ||F ||G ||H ||J ||K ||L ||; ||' || Enter |
|----------------------------------------------------------+
|Shift ||Z ||X ||C ||V ||B ||N ||M ||, ||. ||/ ||Sf||↑ ||Dl|
|----------------------------------------------------------+
|Ctl||Win||Alt|| Space ||FN1||  Space  ||Al||F2||← ||↓ ||→ |
`----------------------------------------------------------'
Layer 1: Utility
Specialities:
- F1-F12 keys when holding FN1
- Movement cluster on the right hand side
- Multimedia cluster on the bottom right
- RGB config on the left hand side
Layer 2: Config and setup
Specialities:
- Reset key on ESC and backslash location
- Additional "B" key (a learning from my mistakes)
