Remove newline in front of network init message
Add config to Makefile objects
Implement spi_get_default_config to clean a config struct
Hide packet receive from interface, network_backbone handles receiving packets
Clean some or's
Fix spi error where struct was not initialized with zeros
Finish implementation of network_init
Implement basic network_backbone
Remove network_has_received_packet as a user should not poll the network chip, network_backbone does this