Use the tool plugin to include photon-targeting into photon-core (#2137)

## Description

This allows photon-targeting to be loaded using the same mechanism as
the rest of the WPILib libraries, fixing issues with libraries not being
able to find and load their dependent libraries.

## Meta

Merge checklist:
- [x] Pull Request title is [short, imperative
summary](https://cbea.ms/git-commit/) of proposed changes
- [x] The description documents the _what_ and _why_
- [x] If this PR changes behavior or adds a feature, user documentation
is updated
- [ ] If this PR touches photon-serde, all messages have been
regenerated and hashes have not changed unexpectedly
- [ ] If this PR touches configuration, this is backwards compatible
with settings back to v2025.3.2
- [ ] If this PR touches pipeline settings or anything related to data
exchange, the frontend typing is updated
- [ ] If this PR addresses a bug, a regression test for it is added

photon-targeting/src/main/java/org/photonvision/jni/LibraryLoader.java

@@ -0,0 +1,81 @@
+/*
+ * Copyright (C) Photon Vision.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package org.photonvision.jni;
+
+import edu.wpi.first.apriltag.jni.AprilTagJNI;
+import edu.wpi.first.cscore.CameraServerJNI;
+import edu.wpi.first.cscore.OpenCvLoader;
+import edu.wpi.first.hal.JNIWrapper;
+import edu.wpi.first.math.jni.WPIMathJNI;
+import edu.wpi.first.net.WPINetJNI;
+import edu.wpi.first.networktables.NetworkTablesJNI;
+import edu.wpi.first.util.CombinedRuntimeLoader;
+import edu.wpi.first.util.WPIUtilJNI;
+import java.io.IOException;
+import org.opencv.core.Core;
+
+public class LibraryLoader {
+    private static boolean hasWpiLoaded = false;
+    private static boolean hasTargetingLoaded = false;
+
+    public static boolean loadWpiLibraries() {
+        if (hasWpiLoaded) return true;
+
+        NetworkTablesJNI.Helper.setExtractOnStaticLoad(false);
+        WPIUtilJNI.Helper.setExtractOnStaticLoad(false);
+        CameraServerJNI.Helper.setExtractOnStaticLoad(false);
+        OpenCvLoader.Helper.setExtractOnStaticLoad(false);
+        JNIWrapper.Helper.setExtractOnStaticLoad(false);
+        WPINetJNI.Helper.setExtractOnStaticLoad(false);
+        WPIMathJNI.Helper.setExtractOnStaticLoad(false);
+        AprilTagJNI.Helper.setExtractOnStaticLoad(false);
+        try {
+            // Need to load wpiutil first before checking if the MSVC runtime is valid
+            CombinedRuntimeLoader.loadLibraries(LibraryLoader.class, "wpiutiljni");
+            WPIUtilJNI.checkMsvcRuntime();
+            CombinedRuntimeLoader.loadLibraries(
+                    LibraryLoader.class,
+                    "wpimathjni",
+                    "ntcorejni",
+                    "wpinetjni",
+                    "wpiHaljni",
+                    "cscorejni",
+                    "apriltagjni");
+
+            CombinedRuntimeLoader.loadLibraries(LibraryLoader.class, Core.NATIVE_LIBRARY_NAME);
+            hasWpiLoaded = true;
+        } catch (IOException e) {
+            e.printStackTrace();
+            hasWpiLoaded = false;
+        }
+
+        return hasWpiLoaded;
+    }
+
+    public static boolean loadTargeting() {
+        if (hasTargetingLoaded) return true;
+        try {
+            CombinedRuntimeLoader.loadLibraries(LibraryLoader.class, "photontargetingJNI");
+            hasTargetingLoaded = true;
+        } catch (IOException e) {
+            e.printStackTrace();
+            hasTargetingLoaded = false;
+        }
+        return hasTargetingLoaded;
+    }
+}