Use external dependencies for NI and NetComm libraries (#1304)

This removes a number of large binary files from the repo and enables vendors
to depend on these libraries separately.

hal/src/generate/FRCNetComm.java.in

@@ -0,0 +1,33 @@
+/*
+ * Autogenerated file! Do not manually edit this file.
+ */
+
+package edu.wpi.first.wpilibj.hal;
+
+/**
+ * JNI wrapper for library <b>FRC_NetworkCommunication</b><br>.
+ */
+@SuppressWarnings({"MethodName", "LineLength"})
+public class FRCNetComm {
+  /**
+   * Resource type from UsageReporting.
+   */
+  @SuppressWarnings({"TypeName", "PMD.ConstantsInInterface"})
+  public static final class tResourceType {
+    private tResourceType() {
+    }
+
+${usage_reporting_types}
+  }
+
+  /**
+   * Instances from UsageReporting.
+   */
+  @SuppressWarnings({"TypeName", "PMD.ConstantsInInterface"})
+  public static final class tInstances {
+    private tInstances() {
+    }
+
+${usage_reporting_instances}
+  }
+}