Program Yoink! refactor (#11636)

* split config.h for each variant

* split rules.mk for each variant

* split source and header files for each variant

* move keymaps to the appropriate variant

* update keyboard readme

* update keymap readmes

* differentiate Staggered and Ortho USB Device Strings

* clean up formatting in info.json

* split info.json files for each variant

* break up the info.json for readability

* correct key positioning and board dimensions

* correct key object sequences

* add weak encoder function to keyboard level

Allows Configurator-compiled firmware to have encoder functionality.

* add variant-specific readme files and bootloader instructions

keyboards/program_yoink/program_yoink.c

@@ -15,3 +15,14 @@
  */
 
 #include "program_yoink.h"
+
+__attribute__ ((weak))
+void encoder_update_user(uint8_t index, bool clockwise) {
+    if (index == 0) {
+        if (clockwise) {
+            tap_code(KC_VOLU);
+        } else {
+            tap_code(KC_VOLD);
+        }
+    }
+}