Organize suite by layer

- Previous split by team and transactional/non was arbitrary
- New split should give us more insight into what is slow
- Group the fastest tests to avoid some of the overhead of bundling on Travis
- Split controller tests by runtime and services since they are the slowest suite
- [#72355828]

Signed-off-by: Abhijit Hiremagalur <abhi@pivotallabs.com>