support all the otCoapSend*WithParameters but for otCoapSecure

[jvermillard]

We want to set the mAckTimeout on our coapSecure calls but the feature was implemented only for the plaintext CoAP API.

Solution:

Create the equivalent of

otCoapSendRequestWithParameters
otCoapSendRequestBlockWithWithParameters
otCoapSendResponseBlockWiseWithParameters
otCoapSendRequestBlockWiseWithParameters

For CoapSecure:

otCoapSecureSendRequestWithParameters
otCoapSecureSendRequestBlockWithWithParameters
otCoapSecureSendResponseBlockWiseWithParameters
otCoapSecureSendRequestBlockWiseWithParameters

[jwhui]

@jvermillard , sounds good to me. Are you planning to submit a PR?

[jvermillard]

I can't submit a PR at the moment, but why not