Return named type from PhotonPoseEstimator (#734)

Adds PhotonPoseEstimator class, and deprecates RobotPoseEstimator

photon-lib/src/main/java/org/photonvision/EstimatedRobotPose.java

@@ -0,0 +1,47 @@
+/*
+ * MIT License
+ *
+ * Copyright (c) 2022 PhotonVision
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+package org.photonvision;
+
+import edu.wpi.first.math.geometry.Pose3d;
+
+/** An estimated pose based on pipeline result */
+public class EstimatedRobotPose {
+    /** The estimated pose */
+    public final Pose3d estimatedPose;
+
+    /** The estimated time the frame used to derive the robot pose was taken */
+    public final double timestampSeconds;
+
+    /**
+     * Constructs an EstimatedRobotPose
+     *
+     * @param estimatedPose estimated pose
+     * @param timestampSeconds timestamp of the estimate
+     */
+    public EstimatedRobotPose(Pose3d estimatedPose, double timestampSeconds) {
+        this.estimatedPose = estimatedPose;
+        this.timestampSeconds = timestampSeconds;
+    }
+}