uORB Explained Blog Post : Add pasta_information uORB message definition

Add details to pasta_information.msg file and add to logged_topics

Add uORBExplained Module (Not complete yet)

Add functioning uorb_explained module

- Implements a functioning module that works based on ModulBae
inheritance
- Edits the rcS script to start the module on start-up
- Implements Customer / Waiter / Chef distinction inside the code by
each function to demonstrate how uORB communication can work

Fix timestamp not logged bug + Make temperature draw sine curve

- More interesting in PlotJuggler :)

msg/CMakeLists.txt

@@ -124,6 +124,7 @@ set(msg_files
 	optical_flow.msg
 	orbit_status.msg
 	parameter_update.msg
+	pasta_information.msg
 	ping.msg
 	pps_capture.msg
 	position_controller_landing_status.msg

msg/pasta_information.msg

@@ -0,0 +1,33 @@
+# Message with information for a dish of pasta
+uint64 timestamp			# [us] time when the topic was published
+
+uint16 customer_table_id		# customer’s table ID to know where to serve
+
+uint8 menu_name				# menu, e.g. Carbonara, Amatriciana
+
+uint8 PASTA_MENU_UNDEFINED = 0		# Undefined: Default value if no value is set
+uint8 PASTA_MENU_CARBONARA = 1		# Carbonara: With Egg, Pecorino and Guanciale!
+uint8 PASTA_MENU_AMATRICIANA = 2	# Amatriciana: With Tomato, Pecorino and Guanciale!
+uint8 PASTA_MENU_AGLIO_E_OLIO = 3	# Aglio E Olio: With Olive oil and Garlic!
+uint8 PASTA_MENU_BOLOGNESE = 4		# Bolognese: With Beef and Tomato!
+
+uint8 cooked_texture			# how cooked the pasta should be, e.g. Al Dente
+
+uint8 PASTA_COOKED_UNDEFINED = 0	# Undefined: Default value if no value is set
+uint8 PASTA_COOKED_AL_DENTE = 1		# Al Dente: https://en.wikipedia.org/wiki/Al_dente
+uint8 PASTA_COOKED_RAW = 2		# Barely cooked
+
+uint8 pasta_type			# type of pasta, e.g. Spaghetti, Lasagne, Rigatoni
+
+uint8 PASTA_TYPE_UNDEFINED = 0		# Undefined: Default value if no value is set
+uint8 PASTA_TYPE_SPAGHETTI = 1		# Spaghetti: Long, stringy pasta
+uint8 PASTA_TYPE_RIGATONI = 2		# Rigatoni: Cylindrical pasta perfect for Carbonara!
+uint8 PASTA_TYPE_LASAGNE = 3		# Lasagne: Flat, big pasta that gets layered on each other
+
+float32 pasta_temperature		# [deg C] temperature of the pasta
+
+# TOPICS pasta_cook pasta_order
+
+# The topic pub/sub flow would be as follows:
+# Customer -> 'pasta_order' -> Waiter
+# Waiter -> 'pasta_cook' -> Chef