🇪🇸 Added area codes for Spain

[luhalvesbr]

-> Area code for 50 provincies in Spain
-> Special cases named "Intelligent Numbers"

[sourcelevel-bot]

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[luhalvesbr]

Here we have the main document I based to fill the rules
(It's in Spanish, however, as the rules are mostly numbers, I guess it won't be a problem if you want to take a look)

https://avancedigital.gob.es/es-ES/Servicios/Numeracion/Documents/Guia_Numeracion.pdf

On page 27th,
We have the table with every single province in Spain and the respective telephone numbers prefix.

On pages 5-11 (Mainly page 6),
We have the types of "intelligent numbers".
I did know exactly how I should proceed to add this special case and respect the created structure.
So, I just followed the same way you did for the Brazilian Toll-Free.
Let me know if you have something different in mind and we can adapt it.

[coveralls]

Coverage remained the same at 100.0% when pulling 04d330d on LuhalvesBR:feature/spanish-area-codes into 53f19c6 on fcevado:master.

[sourcelevel-bot]

SourceLevel has finished reviewing this Pull Request and has found:

• 4 possible new issues (including those that may have been commented here).
• 3 fixed issues! 🎉

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[luhalvesbr]

It asked me to add 2 spaces...
Then, after committing it asked to remove it...

Am I misunderstanding something?

[fcevado]

@luhalvesbr I'll take a look on why sourcelevel is bugging with the markdown stuff. no worries, I gonna do a full review of this change later today.