ApiService initial commit. did some testing in /test.

ApiService/pom.xml

ApiService/src/main/java/apiservice/ApiServiceApp.java

ApiService/src/main/java/apiservice/model/Asset.java

ApiService/src/main/java/apiservice/repo/AssetRepo.java

ApiService/src/main/java/apiservice/repo/IAssetRepo.java

...rvice/src/main/java/apiservice/service/ApiController.java

ApiService/src/main/java/apiservice/service/ApiService.java

ApiService/src/test/java/apiservice/ApiControllerTest.java