added a test for mapping submodule, it tests if it can reserve a node and channel in the same request
added a test for mapping submodule, it tests if it can reserve a node and channel in the same request

dostavro/omf_sfa,dostavro/omf_sfa,ardadouk/omf_sfa,ardadouk/omf_sfa,ardadouk/omf_sfa,dostavro/omf_sfa