ZEPPELIN-598 ] Dynamic loading for Interpreter

[cloverhearts]

What is this PR for?

Use of external libraries that are included in the Roadmap,
The interpreter needs related to dynamic loading capabilities.

What type of PR is it?

Feature

Todos

• - Dynamic load

Is there a relevant Jira issue?

https://issues.apache.org/jira/browse/ZEPPELIN-598

How should this be tested?

By annotating the interpreter setting items below, try using the loadDynamicInterpreter method.
Or create a new interpreter loads created in the local Maven repository.
incubator-zeppelin/zeppelin-zengine/src/main/java/org/apache/zeppelin/conf/ZeppelinConfiguration.java

    ZEPPELIN_INTERPRETERS("zeppelin.interpreters", "org.apache.zeppelin.spark.SparkInterpreter,"
        + "org.apache.zeppelin.spark.PySparkInterpreter,"
        + "org.apache.zeppelin.spark.SparkSqlInterpreter,"
        + "org.apache.zeppelin.spark.DepInterpreter,"
        + "org.apache.zeppelin.markdown.Markdown,"
...

Questions:

• Does the licenses files need update? no
• Is there breaking changes for older versions? no
• Does this needs documentation? no