Add Servo Standardization

Author: 年迈的老秋风Windy

src/main/java/org/darbots/corebotlib/hardware/Servo.java

@@ -0,0 +1,18 @@
+package org.darbots.corebotlib.hardware;
+
+import org.darbots.corebotlib.hardware.typedef.instances.ServoTypeInstance;
+
+public interface Servo {
+    /**
+     * Get last set position
+     * @return Last set position in range of [-1,1]
+     */
+    double getTargetPosition();
+
+    /**
+     * Set a target position for servo
+     * @param targetPosition target position in range [-1, 1]
+     */
+    void setTargetPosition(double targetPosition);
+    ServoTypeInstance getServoType();
+}

src/main/java/org/darbots/corebotlib/hardware/ServoUsingMotor.java

@@ -0,0 +1,31 @@
+package org.darbots.corebotlib.hardware;
+
+import org.darbots.corebotlib.hardware.typedef.instances.ServoTypeInstance;
+
+public class ServoUsingMotor implements Servo, AsyncDevice {
+    
+    @Override
+    public double getTargetPosition() {
+        return 0;
+    }
+
+    @Override
+    public void setTargetPosition(double targetPosition) {
+
+    }
+
+    @Override
+    public ServoTypeInstance getServoType() {
+        return null;
+    }
+
+    @Override
+    public boolean isBusy() {
+        return false;
+    }
+
+    @Override
+    public void update() {
+
+    }
+}