Adding source: affaldonline_dk (#2148)

* Adding sources: assensforsyning_dk, middelfart_dk and silkeborgforsyning_dk

* Minor fix in middelfart_dk.md

* Add source: Affaldonline_dk

* refomratting

* Affaldonline_dk.md update and removal of not yet pulled individual sources.

* README.md and info.md update

* affaldonline_dk source updates

* affaldonline_dk reformatting üadd EXTRA_INFO default_params

---------

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

doc/source/affaldonline_dk.md

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+# Affaldonline
+
+Support for schedules from Affaldonline, which serves several Danish municipalities.
+
+The layout of the response page may differ. There seems to be a default, but I've stumpled upon at least a few uniques.
+
+## Configuration via configuration.yaml
+
+```yaml
+waste_collection_schedule:
+    sources:
+        - name: affaldonline_dk
+          args:
+              municipality: "favrskov"
+              values: "Nørregade|1||||8382|Hinnerup|6443|108156|0"
+```
+
+### Configuration Variables
+
+**municipality**  
+_(String) (required)_
+
+An affaldonline defined string for the municipality. I.e. "aeroe" for "Ærø". 
+
+A duckduckgo search revealed many of them:
+
+- [DuckDuckGo](https://duckduckgo.com/?t=h_&q=site%3Aaffaldonline.dk%2Fkalender%2F&ia=web)
+
+**values**  
+_(String) (required)_
+
+A string that includes the street name, house number, postal code, city name, and some numbers that seems to be internal affaldonline references. 
+
+## How to find the "values" string to use
+
+Go to the Affaldonline site for your municipality: 
+
+- [Ærø](https://www.affaldonline.dk/kalender/aeroe/)
+- [Assens](https://www.affaldonline.dk/kalender/assens/)
+- [Favrskov](https://www.affaldonline.dk/kalender/favrskov/)
+- [Fanø](https://www.affaldonline.dk/kalender/fanoe/)
+- [Fredericia](https://www.affaldonline.dk/kalender/fredericia/)
+- [Langeland](https://www.affaldonline.dk/kalender/langeland/)
+- [Middelfart](https://www.affaldonline.dk/kalender/middelfart/)
+- [Nyborg](https://www.affaldonline.dk/kalender/nyborg/)
+- [Rebild](https://www.affaldonline.dk/kalender/rebild/)
+- [Silkeborg](https://www.affaldonline.dk/kalender/silkeborg/)
+- [Sorø](https://www.affaldonline.dk/kalender/soroe/)
+- [Vejle](https://www.affaldonline.dk/kalender/vejle/)
+
+Open the developer console in your browser.
+
+Enter your address and select the house number in the dropdown menu.
+
+In the Network tab in the browser console, select the latest URL ending in **showInfo.php** and look under Payload, where you should find the **values** variable ready for copy/paste.
+
+Depending on your browser, it should also be possible to right-click the house number field, and select "Inspect" - this should give you the html for the field, and here you can select the value from your house number in the list.
+
+### Customizing Waste Types
+
+Customizing waste types is a feature of the Waste Collection Schedule component and is very useful here, since the waste types in affaldonline are often long and not very consistent.
+
+```yaml
+waste_collection_schedule:
+    sources:
+        - name: affaldonline_dk
+          args:
+              municipality: "favrskov"
+              values: "Nørregade|1||||8382|Hinnerup|6443|108156|0"
+          customize:
+              - type: "Plast/mad- og drikkekartoner og glas/metal"
+                alias: "Plast/glas/metal"
+```