Keyboard: Espectro refactor and Configurator support (#4666)

Keyboard: Espectro refactor and Configurator support (#4666)

* Espectro: layout macro refactor

- updated to #pragma once method
- restructure LAYOUT_all data as block comment
  - Configurator was reading the LAYOUT_all macro even though it was commented out.
- updated all keyswitch arguments to use K<ROW><COLUMN> notation
- add LAYOUT_iso macro
- add info.json file for Configurator support

* Espectro: keymap refactor

- deleted unused MODS_CTRL_MASK definitions
- iso keymap refactored to use LAYOUT_iso macro
- default and iso keymaps refactored for readability