Add CoAP Simple Library to in Library Manager

[hirotakaster]

Hi,
This CoAP library for Arduino is very simple and useful implementation about the CoAP.
https://github.com/hirotakaster/CoAP-simple-library
Thanks!

[agdl]

Hi, you library is tagged ad V1.0 by in the library.properties related to that tag I can see a 1.3.5 It is better if you fix it please

[hirotakaster]

Hi, I update v1.0 -> V1.3.5 on github.

[agdl]

Please remove the v1.0 tag and leave only the release 1.3.5

[agdl]

Done thank you!