Web UI and OLED: adding Support Devices (#666)

* Use the comparison operator that Python3 likes.

* Add SUPPORT_DEVICE_TYPES category, and add Host Service to it.

* Add webapp UI for attaching a support device.

* Make the OLED screen aware of the support device type.

* Tweak test to make it clear that this is experimental functionality.

* Tweak device type names

python/oled/src/rascsi_oled_monitor.py

@@ -46,6 +46,7 @@ from rascsi.socket_cmds import SocketCmds
 from rascsi.common_settings import (
     REMOVABLE_DEVICE_TYPES,
     NETWORK_DEVICE_TYPES,
+    SUPPORT_DEVICE_TYPES,
 )
 
 parser = argparse.ArgumentParser(description="RaSCSI OLED Monitor script")
@@ -186,8 +187,8 @@ def formatted_output():
                                   f"{line['file']} {line['status']}")
                 else:
                     output.append(f"{line['id']} {line['device_type'][2:4]} {line['status']}")
-            # Special handling for network devices
-            elif line["device_type"] in NETWORK_DEVICE_TYPES:
+            # Special handling of devices that don't use image files
+            elif line["device_type"] in (NETWORK_DEVICE_TYPES + SUPPORT_DEVICE_TYPES):
                 output.append(f"{line['id']} {line['device_type'][2:4]} {line['vendor']} "
                               f"{line['product']}")
             # Print only the Vendor/Product info if it's not generic RaSCSI