I like to add a new library

[offcircuit]

I like to add a new library:

SDHT
url: https://github.com/offcircuit/SDHT

[offcircuit]

I forgot to say hello :)

[offcircuit]

Sorry, I had add some resources to reduce memory use (optionally)

[offcircuit]

Now, I belive it is good.

[cmaglie]

done!

[offcircuit]

How can I update my libs:
https://github.com/offcircuit/SDHT
https://github.com/offcircuit/DTime

thanks,
Helder Rodrigues