- Create a new macro SCH_DEV() to manage verbose debug messages that are
only useful for debugging Schannel recv decryption.
schannel_recv contains a lot of useful debug messages to help debug the
function, however in practice they are not otherwise useful and showing
them in debug builds adds a lot of noise.
To show these messages curl must now be built with
CURL_SCHANNEL_DEV_DEBUG defined.
Prior to this change many, but not all, extra-verbose messages were
wrapped in DEBUGF() so they were only shown in debug builds.
Ref: https://github.com/curl/curl/issues/14807Closes#14826