ZEPPELIN-2982. Copy interpreter-setting.json to interpreter dir
### What is this PR for?
2 main changes.
* Introduce `interpreter-parent` module, so that all the interpreter can reuse
the plugin defined in `interpreter-parent`
* Add new plugin for `copying interpreter-setting.json` to
Repository: zeppelin
Updated Branches:
refs/heads/master 862871f67 -> 4a3057fa8
http://git-wip-us.apache.org/repos/asf/zeppelin/blob/4a3057fa/shell/pom.xml
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diff --git a/shell/pom.xml b/shell/pom.xml
index 58d8900..0157d86
Repository: zeppelin
Updated Branches:
refs/heads/master a424f5c65 -> 862871f67
ZEPPELIN-2953 Allow custom http header for livy interpreter
### What is this PR for?
This PR is trying to allow user to add custom http headers when calling livy
rest api. User just need to specify