Create an example for TarantoolTemplate and TarantoolRepository usage

[akudiyar]

Create a new project with an example and add a link to it to the README.

References: https://www.baeldung.com/spring-data-mongodb-tutorial https://github.com/pacphi/spring-boot-mongodb-example https://www.concretepage.com/spring-5/spring-data-mongotemplate