Add java agent plugin (#237)

Signed-off-by: Prudhvi Godithi <pgodithi@amazon.com>

Author: prudhvigodithi

build.gradle

@@ -58,6 +58,7 @@ apply plugin: 'opensearch.opensearchplugin'
 apply plugin: 'opensearch.internal-cluster-test'
 apply plugin: 'opensearch.pluginzip'
 apply plugin: 'opensearch.rest-test'
+apply plugin: 'opensearch.java-agent'
 apply from: 'gradle/formatting.gradle'
 
 repositories {
@@ -91,17 +92,9 @@ opensearchplugin {
   noticeFile rootProject.file('NOTICE')
 }
 
-configurations {
-  agent
-}
-
 dependencies {
   api "com.github.luben:zstd-jni:1.5.6-1"
   api "com.intel.qat:qat-java:1.1.1"
-
-  agent "org.opensearch:opensearch-agent-bootstrap:${opensearch_version}"
-  agent "org.opensearch:opensearch-agent:${opensearch_version}"
-  agent "net.bytebuddy:byte-buddy:${versions.bytebuddy}"
 }
 
 allprojects {
@@ -240,13 +233,3 @@ task updateVersion {
         ant.replaceregexp(file:'build.gradle', match: '"opensearch.version", "\\d.*"', replace: '"opensearch.version", "' + newVersion.tokenize('-')[0] + '-SNAPSHOT"', flags:'g', byline:true)
     }
 }
-
-task prepareAgent(type: Copy) {
-  from(configurations.agent)
-  into "$buildDir/agent"
-}
-
-tasks.withType(Test) {
-  dependsOn prepareAgent
-  jvmArgs += ["-javaagent:" + project.layout.buildDirectory.file("agent/opensearch-agent-${opensearch_version}.jar").get()]
-}