Creates a layouts/ folder for keymaps shared between keyboards (#1609)

* include variables and .h files as pp directives

* start layout compilation

* split ergodoxes up

* don't compile all layouts for everything

* might seg fault

* reset layouts variable

* actually reset layouts

* include rules.mk instead

* remove includes from rules.mk

* update variable setting

* load visualizer from path

* adds some more examples

* adds more layouts

* more boards added

* more boards added

* adds documentation for layouts

* use lowercase names for LAYOUT_

* add layout.json files for each layout

* add community folder, default keymaps for layouts

* touch-up default layouts

* touch-up layouts, some keyboard rules.mk

* update documentation for layouts

* fix up serial/i2c switches

layouts/community/ergodox/algernon/tools/hid-commands

@@ -0,0 +1,80 @@
+#!/bin/bash
+set -e
+
+LAST_APPSEL_START=0
+
+cmd_wm () {
+    WIN="$(xdotool getactivewindow)"
+    wmctrl -i -r ${WIN} -b remove,maximized_vert,maximized_horz
+    xdotool windowsize ${WIN} 100% 100%
+    wmctrl -i -r ${WIN} -b add,maximized_vert,maximized_horz
+}
+
+_cmd_appsel () {
+    wmctrl -x -a $1 || true
+    xdotool key Escape
+}
+
+cmd_appsel_music () {
+    wmctrl -x -a rhythmbox || wmctrl -x -a spotify || \
+        wmctrl -x -a banshee || wmctrl -x -a kodi || true
+    xdotool key Escape
+}
+
+cmd_appsel_slack () {
+    _cmd_appsel slack
+}
+
+cmd_appsel_emacs () {
+    _cmd_appsel emacs
+}
+
+cmd_appsel_term () {
+    _cmd_appsel gnome-terminal
+}
+
+cmd_appsel_chrome () {
+    _cmd_appsel chrom
+}
+
+cmd_appsel_start () {
+    if [ ! -z "${DISABLE_APPSEL_START}" ]; then
+        return
+    fi
+
+    APPSEL_START=$(date +%s)
+    if [ $APPSEL_START -lt $(expr $LAST_APPSEL_START + 10) ]; then
+        return
+    fi
+    LAST_APPSEL_START=$APPSEL_START
+    notify-send -t 1000 "Please select an application!" -c device -u low \
+                -i /usr/share/icons/Adwaita/24x24/devices/video-display.png
+}
+
+cmd_reflash () {
+    teensy_loader_cli -v -w ~/src/ext/qmk_firmware/algernon.hex --mcu atmega32u4 || true
+}
+
+cmd_help () {
+    cat <<EOF
+Use the source, Luke!
+EOF
+}
+
+while read l; do
+    case "$l" in
+        "CMD:"*)
+            ;;
+        *)
+            continue
+            ;;
+    esac
+
+    cmd="$(echo $l | cut -d: -f2-)"
+
+    echo "Got command: ${cmd}"
+
+    if type cmd_${cmd} >/dev/null 2>&1; then
+        cmd_${cmd}
+    fi
+done