JAVA-API: Manual Library Loading Support for Restricted Environments (#2253)

* feat: Added LibraryLoader that allows loading to be skipped

* feat: Changed static call to new LibraryLoader

* feat: Makefile adjustment

sherpa-onnx/java-api/src/com/k2fsa/sherpa/onnx/OfflineTts.java

@@ -4,13 +4,10 @@ package com.k2fsa.sherpa.onnx;
 
 
 public class OfflineTts {
-    static {
-        System.loadLibrary("sherpa-onnx-jni");
-    }
-
     private long ptr = 0;
 
     public OfflineTts(OfflineTtsConfig config) {
+        LibraryLoader.maybeLoad();
         ptr = newFromFile(config);
     }