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/PointerGestures.cpp

@@ -4,8 +4,6 @@
 #include "core/Seat.hpp"
 #include "core/Compositor.hpp"
 
-#define LOGM PROTO::pointerGestures->protoLog
-
 CPointerGestureSwipe::CPointerGestureSwipe(SP<CZwpPointerGestureSwipeV1> resource_) : resource(resource_) {
     if (!resource->resource())
         return;