Add CIDIU S.p.A. (Italy) source (#2428)

* Add CIDIU S.p.A. (Italy) source

* CIDIU SpA source args aren't optional

* reformatting + allow integer street_number

---------

Co-authored-by: 5ila5 <5ila5@users.noreply.github.com>

doc/source/cidiu_it.md

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+# CIDIU S.p.A.
+
+Support for schedules provided by [CIDIU S.p.A.](https://www.cidiu.it/), in the nort-west Turin province in Italy.
+The service will scrape the bi-weekly schedule table returned by the getRecollection method from cidiu-processer.php
+
+## How to get the configuration arguments
+
+- Browse to the [waste schedule page](https://cidiu.it/calendario-delle-raccolte)
+- Select your town, street name and number from the dropdowns
+- Click on "Visualizza il calendario bisettimanale"
+
+If you get a schedule, you can use the same parameters in the configuration
+
+## Configuration via configuration.yaml
+
+```yaml
+waste_collection_schedule:
+    sources:
+    - name: cidiu_it
+      args:
+        city: Collegno
+        street_name: via Roma
+        street_number: '1'
+
+```
+
+### Configuration Variables
+
+**city**  
+*(string (required))*
+
+Your city name. All cities/towns/communalities served by CIDIU are listed on the [available service](https://cidiu.it/i-servizi-nel-tuo-comune/) web page.
+
+**street**  
+*(string) (required)*
+
+Street name without number, make sure it's the same you tested on the [waste schedule page](https://cidiu.it/calendario-delle-raccolte).
+
+**street_number**  
+*(string) (required)*
+
+Street number, make sure it's the same you tested on the [waste schedule page](https://cidiu.it/calendario-delle-raccolte).
+
+## Returned Collections
+
+This source will return the schedule for the next 15 days for each container type.
+
+## Returned collection types
+
+### Indifferenziato
+
+Green bin for general domestic waste.
+
+### Organico
+
+Brown bin for organic waste (food waste and anything biodegradable and compostable).
+
+### Carta
+
+White bin for paper, cardboard, magazines, pamphlets, books, notebooks, paper bags, paper packaging and tetrapaks.
+
+### Vetro e lattine
+
+Green/brown bin for bottles, jars, aluminium drinks cans, metal food cans and canisters, aluminium caps.
+
+### Plastica
+
+Blue bin for water and soft drinks bottles, liquid containers in general, polystyrene, plastic plates and cups, grocery bags.
+
+### Sfalci
+
+Green bin for grass cuts, foliage, and prunings in general
+
+
+- *Sfalci abbonamento ridotto* will list the bi-weekly schedule collections from March to October
+- *Sfalci abbonamento intero* will list the weekly schedule collections from March to October and the monthly schedule from November to February