Renamed Network mod to Host, removed debugging function, communted out dormant portions of DHCP host config

src/host/dhcp.rs

@@ -0,0 +1,30 @@
+use crate::bus::ActiveBus;
+use crate::host::Host;
+use crate::MacAddress;
+
+pub struct Dhcp {
+    // settings: HostConfig,
+// current: HostConfig,
+}
+
+impl Dhcp {
+    pub fn new(_mac: MacAddress) -> Self {
+        // let settings = HostConfig {
+        //     mac,
+        //     ..HostConfig::default()
+        // };
+        Self {
+            // settings,
+            // current: HostConfig::default(),
+        }
+    }
+}
+
+impl Host for Dhcp {
+    /// Gets (if necessary) and sets the host settings on the chip
+    fn refresh<SpiBus: ActiveBus>(&mut self, _bus: &mut SpiBus) -> Result<(), SpiBus::Error> {
+        // TODO actually negotiate settings from DHCP
+        // TODO figure out how should receive socket for DHCP negotiations
+        Ok(())
+    }
+}