added elasticsearch to composer.json

composer.json

@@ -52,6 +52,7 @@
 	"replace": {
 		"yiisoft/yii2-bootstrap": "self.version",
 		"yiisoft/yii2-debug": "self.version",
+		"yiisoft/yii2-elasticsearch": "self.version",
 		"yiisoft/yii2-gii": "self.version",
 		"yiisoft/yii2-jui": "self.version",
 		"yiisoft/yii2-redis": "self.version",
@@ -79,6 +80,7 @@
 		"psr-0": {
 			"yii\\bootstrap\\": "extensions/bootstrap/",
 			"yii\\debug\\": "extensions/debug/",
+			"yii\\elasticsearch\\": "extensions/elasticsearch/",
 			"yii\\gii\\": "extensions/gii/",
 			"yii\\jui\\": "extensions/jui/",
 			"yii\\redis\\": "extensions/redis/",