Test to be added and to be enabled (+miscellaneous)

[VincenzoFerme]

We need to add tests for: faban and properties

We need to move tests related to cutNProcesses here

We need to extend mysqlTests to include: cutNProcesses
We need to extend propertiesTests to include: createInfoDict, createVersionDict
We need to extend statsTests to include: createNetworkDict, createHostNetworkDict, getBytesSumForContainerPIDS, createNetworkHostQuery, test when net is not host (see #84)

We need to enable spark tests for fabanTransformer and propertiesTransformer

Moreover, we also plan to add some performance test in CI.