Add new source from Hungary/Erd

[sthevenp]

Dear All,

Is there any chance to add this waste collection schedule service:

https://www.eth-erd.hu/hulladeknaptar

This page looks similar to this one:
FKF Budapest, HU (tahnks @tmshader)

Thanks in advance.

[tmshader]

Hi!
I looked into it and I think I can implement it when I have a bit of time.

[5ila5]

opened issue #1341 as nearly all source requests are issues.

[5ila5]

added in #1344