Add API mockup and API test mockup with Mockito
Merge branch 'master' into network-api-client
Add Task stabs
refactoring
Fix confilct in MainActivity
Add API.uploadFood mockup and Refactore APITest
Implement fetchUser
Add APITestHelper.java
Add APITest.testUploadFoodWithUnknownError unit test
Merge branch 'network-api-client'