Add description field in security definitions

[quilicicf]

Issue

The field description of security definitions is missing from the Java POJO, thus lost during deserialization.

Test

Tested with Swagger containing:

"securityDefinitions": {
  "securityDefinition1": {
    "type": "basic",
    "description": "Swagger.securityDefinitions.*.description"
  }
}

And main method:

Swagger swagger = Json.mapper().readValue(file.toFile(), Swagger.class);
System.out.println(swagger.getSecurityDefinitions().get("securityDefinition1").getDescription());

Output: Swagger.securityDefinitions.*.description

[webron]

@quilicicf - thanks for this! Can you please just modify the code to following our standard guidelines? Specifically https://github.com/swagger-api/swagger-core/wiki/Coding-Standards#block-less-loops-and-if-statements? Referring specifically to the equals(*) implementation.

[quilicicf]

@webron - you're welcome.
I've updated the code.