Added gns3_node to interact with the node inside a project. Provides the following:
start/stop/suspend/reload: Actions to be applied on the node. These are idempotent with the exception of reload.
Special flags like retry for an action to be applied a second time just in case... And a force_project_open to interact with a device if the project is closed
Enhacements:
gns3_nodeto interact with the node inside a project. Provides the following:start/stop/suspend/reload: Actions to be applied on the node. These are idempotent with the exception ofreload.retryfor an action to be applied a second time just in case... And aforce_project_opento interact with a device if the project is closedgns3_projectto be more pythonic