WIP Test category model. Sin errores de compilacion
WIP Test. Added category to task model. Test fail without compilation error
WIP Test. Added test function getCategorys and getTaskByCategory. Compile OK, test FAIL
WIP Test. Added SQL table category and foreign key to user and task to category. 40-24 Test OK
RESOLVED Test. All test passed. Added new functions to tasks and category
Merge branch 'todo-tdd-category'