Using new reachability-metadata.json format with the hope to work on Windows without backslash issues

Author: JaroslavTulach

lib/java/jvm-channel/src/main/resources/META-INF/native-image/org/enso/jvm/channel/jni-config.json

@@ -0,0 +1,17 @@
+{
+  "jni" : [
+    {
+      "type": "org.enso.jvm.channel.Channel",
+      "methods": [
+        {
+          "name": "createJvmPeerChannel",
+          "parameterTypes": ["long", "long", "long", "java.lang.String"]
+        },
+        {
+          "name": "handleJvmMessage",
+          "parameterTypes": ["long", "long", "long", "long"]
+        }
+      ]
+    }
+  ]
+}