feature：增加obs归集方式 (#90)

* feature：实现通过datax进行obs归集的插件

* feature：前端增加obs归集时的前缀参数

runtime/datax/package.xml

@@ -581,5 +581,19 @@
             </includes>
             <outputDirectory>datax</outputDirectory>
         </fileSet>
+        <fileSet>
+            <directory>obsreader/target/datax/</directory>
+            <includes>
+                <include>**/*.*</include>
+            </includes>
+            <outputDirectory>datax</outputDirectory>
+        </fileSet>
+        <fileSet>
+            <directory>obswriter/target/datax/</directory>
+            <includes>
+                <include>**/*.*</include>
+            </includes>
+            <outputDirectory>datax</outputDirectory>
+        </fileSet>
     </fileSets>
 </assembly>