Updates to Talljoe's Keymaps (#10115)

* Minor Tweak

* Refactor spacebar defines.

* Add TMO50 layout

* Rename Atreus keymap.

* Refactor Atreus for readability.

* Eliminate tapdance quote and tweak maltroff.

* Factor out tapdance.

* Add some fancy combos and keys.

* Remove combos for now because they cause pain.

* WIP visualizer

* Alternate method for reset

* WIP2 visualizer

* Layer text tweak.

* Add made-up layout Nortron as a combination of Norman and Maltron.

* Add backspace.

* Add Talljoe keymap to Prime E.

* Fix double-colon so it doesn't press enter if shift is released early.

* Use new make command.

* Bring some modern standards into code and add licenses.

* Remove QMK_KEYBOARD_CONFIG_H and fixup QMK_KEYBOARD_H.

* Move from `biton32` to `get_highest_layer`.

* Remove PREVENT_STUCK_MODIFIERS

* Update keyboards/thevankeyboards/minivan/keymaps/talljoe-minivan/config.h

users/talljoe/tapdance/tapdance.h

@@ -0,0 +1,26 @@
+/* Copyright 2020 Joseph Wasson
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "quantum.h"
+#include "td_setup.h"
+
+enum tap_dancers {
+  TD_SEMICOLON,
+  TD_GRAVE,
+  TD_LOCK,
+  TD_FUNCTION,
+};
+