Added basic JWT auth

mozen/pom.xml

mozen/src/main/java/mozen/MozenApplication.java

mozen/src/main/java/mozen/auth/JwtAuthenticationFilter.java

mozen/src/main/java/mozen/auth/JwtAuthorizationFilter.java

mozen/src/main/java/mozen/auth/JwtUserDetailsService.java

mozen/src/main/java/mozen/auth/WebSecurity.java

mozen/src/main/java/mozen/business/IModelDao.java

mozen/src/main/java/mozen/business/IModelManager.java

mozen/src/main/java/mozen/business/IUserDao.java

mozen/src/main/java/mozen/business/IUserManager.java

mozen/src/main/java/mozen/business/ModelDao.java

mozen/src/main/java/mozen/business/ModelManager.java

mozen/src/main/java/mozen/business/UserDao.java

mozen/src/main/java/mozen/business/UserManager.java

mozen/src/main/java/mozen/model/LoginMessage.java

mozen/src/main/java/mozen/model/Model.java

mozen/src/main/java/mozen/model/SearchResult.java

mozen/src/main/java/mozen/model/SignupMessage.java

mozen/src/main/java/mozen/model/Tag.java

mozen/src/main/java/mozen/model/TagCategory.java