* Adds new module equity-auth with entity User
* updates entity-model and entity-auth POMs to share database config from parent POM
* updates persistence unit name in entity-model and in entity-webapp ApiService
updates equity-model EquityController to inject the EntityManager directly, instead of a Provider<EntityManager>
remove dummy apps from equity-model
moves io.vos.equity.controller.EquityController to io.vos.equity.model.controller
* adds interface for privately binding JPA EntityManager providers,
  io.vos.equity.ext.jpa.JpaBindingModule to core artifact
* adds base implementation BaseJpaBindingModule and tests
Moving dependencies up to the parent POM

* moves guice-servlet to parent POM dependency
* adds a dependencyManagement entry for equity-core
* adds dependencies from model/webapp on equity-core
* adds HSQLDB dependencies for testing
Adds a generic entity controller interface to equity-model

* adds interface and ModelController and ModelControllerImpl
* adds a module for binding Equity model to a controller
* adds a persistence.xml for testing
Updates equity-webapp ApiModule and EquityResource for changes to equity-model
wip commit: adds package io.vos.equity.webapp.auth