Analysis Annotation Schema

I've created an annotation schema to configure analysis (http://www.elasticsearch.org/guide/reference/index-modules/analysis/) in the ElasticSearch plugin.

This solution was based on elasticsearch-test (https://github.com/tlrx/elasticsearch-test) created by @tlrx.

I also created a project unit-test inside the folder "samples-and-tests" to test the behavior and not only if the mapping is correct.