Update documentation structure and start migrating to markdown (#934)

Starts structuring the documentation library usage into Tutorials, Guides, Explanations and Reference.
Continues migrating new docs from rst to markdown.
Extends the test framework discovery mocks to allow easy writing and testing of code examples.

kasa/iot/iotdevice.py

@@ -105,7 +105,7 @@ class IotDevice(Device):
         All devices provide several informational properties:
 
         >>> dev.alias
-        Kitchen
+        Bedroom Lamp Plug
         >>> dev.model
         HS110(EU)
         >>> dev.rssi

kasa/iot/iotlightstrip.py

@@ -23,7 +23,7 @@ class IotLightStrip(IotBulb):
         >>> strip = IotLightStrip("127.0.0.1")
         >>> asyncio.run(strip.update())
         >>> print(strip.alias)
-        KL430 pantry lightstrip
+        Bedroom Lightstrip
 
         Getting the length of the strip:
 

kasa/iot/iotplug.py

@@ -32,7 +32,7 @@ class IotPlug(IotDevice):
         >>> plug = IotPlug("127.0.0.1")
         >>> asyncio.run(plug.update())
         >>> plug.alias
-        Kitchen
+        Bedroom Lamp Plug
 
         Setting the LED state:
 

kasa/iot/iotstrip.py

@@ -55,7 +55,7 @@ class IotStrip(IotDevice):
         >>> strip = IotStrip("127.0.0.1")
         >>> asyncio.run(strip.update())
         >>> strip.alias
-        TP-LINK_Power Strip_CF69
+        Bedroom Power Strip
 
         All methods act on the whole strip: