Add Meteosource API to Weather

[WaltherEhrmantraut]

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[Peter712-editor]

@mikestreety perfect

[LouISoffcode]

@mikestreety perfect

I know right

[matheusfelipeog]

Hi @WaltherEhrmantraut

Thanks for your contribution ;)

We have some problems with Public APIs, so we won't be able to review/add this improvement right now.

Read this issue for more information, please: #3104

[marcelscruz]

Added on public-apis-dev/public-apis.