Add Element UI and Eslint into vue

See merge request !9

Only front-end change, change js based Vue to ts based Vue

See merge request !8

Service to DB connection is ready.

See merge request !6

Add ExampleRepository.java and ExampleService.java to show how to make Spring service to interact with DB.

Added ServerHttpService.js, Constants.js, ExampleService.js, and changed HelloWorld.vue for show examples. The front to back end connection is ready.

See merge request !5

Added ServerHttpService.js, Constants.js, ExampleService.js, and changed HelloWorld.vue for show examples.
The front to back end connection is ready.

Added ServerHttpService.js, Constants.js, ExampleService.js, and changed HelloWorld.vue for show examples.
The front to back end connection is ready.

Added ServerHttpService.js, Constants.js, ExampleService.js, and changed HelloWorld.vue for show examples.
The front to back end connection is ready.

Updated the example controller model class

See merge request !4

Changed the example controller and changed spring port to 8081

See merge request !3

Change spring boot port to 8081, so it will not interoperate with Vue

Init vue

See merge request !2

Init spring boot, and add few example

See merge request !1

"Added example controller and model. Fixed can not start app by comment the DB library, I will uncomment them when I need."