Add PlatformIO project setup, local libraries, and PCB Gerber files

- Add platformio.ini for ESP32 DevKit (Arduino framework, espressif32 6.10.0)
- Vendor ArduinoJson, MPU6050_tockn, SCServo, Simple_FOC, and WebSockets
  so a fresh clone builds without downloading dependencies
- Add .gitignore rules for PlatformIO/IDE build artifacts
- Add controller PCB Gerber and drill files

3.Software/libraries/MPU6050_tockn/examples/GetAngle/GetAngle.ino

@@ -0,0 +1,22 @@
+
+#include <MPU6050_tockn.h>
+#include <Wire.h>
+
+MPU6050 mpu6050(Wire);
+
+void setup() {
+  Serial.begin(9600);
+  Wire.begin();
+  mpu6050.begin();
+  mpu6050.calcGyroOffsets(true);
+}
+
+void loop() {
+  mpu6050.update();
+  Serial.print("angleX : ");
+  Serial.print(mpu6050.getAngleX());
+  Serial.print("\tangleY : ");
+  Serial.print(mpu6050.getAngleY());
+  Serial.print("\tangleZ : ");
+  Serial.println(mpu6050.getAngleZ());
+}