New source: BIR (#1397)

* New source: BIR

* bir_no improvements

---------

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

doc/source/bir_no.md

@@ -0,0 +1,57 @@
+# BIR - Bergensområdets Interkommunale Renovasjonsselskap
+
+```yaml
+waste_collection_schedule:
+  sources:
+    - name: bir_no
+      args:
+        street_name: ""
+        house_number: ""
+        house_letter: ""
+```
+
+### Configuration Variables
+
+**street_name**  
+*(string) (required)*
+
+**house_number**  
+*(string|Integer) (required)*
+
+**house_letter**  
+*(string) (optional)*
+
+The arguments should be written exactly like on the <https://bir.no/> website
+
+# Example configuration.yaml:
+
+```yaml
+# Waste collection
+waste_collection_schedule:
+  sources:
+    - name: bir_no
+      args:
+        street_name: "Alf Bondes Veg"
+        house_number: "13"
+        house_letter: "B"
+      customize:
+        - type: blue bin
+          alias: Papir
+        - type: green bin
+          alias: Restavfall
+
+# Optional Sensors
+sensor:
+  - platform: waste_collection_schedule
+    name: next_collection
+  - platform: waste_collection_schedule
+    name: waste_collection_garbage
+    details_format: upcoming
+    types:
+      - Restavfall
+  - platform: waste_collection_schedule
+    name: waste_collection_paper
+    details_format: upcoming
+    types:
+      - Papir og plastemballasje
+```