Reorganization of library structure to better match Arduino spec (#20)

Note, this will also require to you "uninstall and reinstall" the Arduino library due to the library file location changes.

Reviewed-on: https://git.pinkduck.xyz/awonak/libGravity/pulls/20

src/peripherials.h

@@ -0,0 +1,43 @@
+/**
+ * @file peripherials.h
+ * @author Adam Wonak (https://github.com/awonak)
+ * @brief Arduino pin definitions for the Sitka Instruments Gravity module.
+ * @version 0.1
+ * @date 2025-04-19
+ * 
+ * @copyright MIT - (c) 2025 - Adam Wonak - adam.wonak@gmail.com
+ *
+ */
+
+#ifndef PERIPHERIALS_H
+#define PERIPHERIALS_H
+
+// OLED Display config
+#define OLED_ADDRESS 0x3C
+#define SCREEN_WIDTH 128
+#define SCREEN_HEIGHT 64
+
+// Peripheral input pins
+#define ENCODER_PIN1 17  // A3
+#define ENCODER_PIN2 4
+#define ENCODER_SW_PIN 14  // A0
+
+// Clock and CV Inputs
+#define EXT_PIN 2
+#define CV1_PIN A7
+#define CV2_PIN A6
+#define PULSE_OUT_PIN 3
+
+// Button pins
+#define SHIFT_BTN_PIN 12
+#define PLAY_BTN_PIN 5
+
+// Output Pins
+#define OUT_CH1 7
+#define OUT_CH2 8
+#define OUT_CH3 10
+#define OUT_CH4 6
+#define OUT_CH5 9
+#define OUT_CH6 11
+
+#endif