Swager Implementation

[suhaslonarkar]

@ameymjoshi this is partially implemented, as stuck at where api's are not rendering in swagger-html. but we can review once may be some small mistake.

[suhaslonarkar]

@ameymjoshi @suhaslonarkar

Steps to configure Swagger

1. Add the Below dependencies.

   io.springfox springfox-swagger2 2.7.0

   <dependency>
       <groupId>io.springfox</groupId>
       <artifactId>springfox-swagger-ui</artifactId>
       <version>2.7.0</version>
   </dependency>

2. Add SwaggerConfig class for creating api docs.
3. Run swagger UI //http://localhost:8080/v2/api-docs

[suhaslonarkar]

@ameymjoshi test