protocols: refactor protocol logging to a macro (#7324)

this avoids the usage of the unique_ptr PROTO::protocol before it has
been constructed incase one wants to log something inside the
constructor itself, move the logging to macros and print file:linenumber
on ERR,CRIT,WARN and classname on the rest of the levels.

src/protocols/core/DataDevice.cpp

@@ -6,8 +6,6 @@
 #include "Seat.hpp"
 #include "Compositor.hpp"
 
-#define LOGM PROTO::data->protoLog
-
 CWLDataOfferResource::CWLDataOfferResource(SP<CWlDataOffer> resource_, SP<IDataSource> source_) : source(source_), resource(resource_) {
     if (!good())
         return;