[Keymap] Add Kyria keymap (#9224)

* Add Kyria keymap

* clean split hand detection code

* rename "joystick" to "thumbstick"

* thumbstick overhaul

* removed angle correction, seems buggy

* save some memory

* Remove deprecated config option

* Use the correct types for getting host led states

* Fix include path

* Made .h files for encoder and oled code

* Increase speed cap on thumbstick

keyboards/kyria/keymaps/gotham/encoder_utils.h

@@ -0,0 +1,37 @@
+#pragma once
+
+#include <stdbool.h>
+
+#include "quantum.h"
+
+typedef enum {
+    ENC_MODE_VOLUME = 0,
+    ENC_MODE_WORD_NAV,
+    ENC_MODE_LEFT_RIGHT,
+    ENC_MODE_UP_DOWN,
+    ENC_MODE_PAGING,
+    _ENC_MODE_LAST  // Do not use, except for looping through enum values
+} encoder_mode_t;
+
+encoder_mode_t encoder_left_mode;
+encoder_mode_t encoder_right_mode;
+
+void encoder_utils_init(void);
+
+void set_encoder_mode(bool left, encoder_mode_t mode);
+
+encoder_mode_t get_encoder_mode(bool left);
+
+void cycle_encoder_mode(bool left, bool reverse);
+
+void encoder_action_volume(uint8_t clockwise);
+
+void encoder_action_word_nav(uint8_t clockwise);
+
+void encoder_action_left_right(uint8_t clockwise);
+
+void encoder_action_up_down(uint8_t clockwise);
+
+void encoder_action_paging(uint8_t clockwise);
+
+void encoder_action(encoder_mode_t mode, uint8_t clockwise);