REORG: quic: use a dedicated quic_loss.c

Move all inline functions with trace from quic_loss.h to a dedicated
object file. This let to remove the TRACE_SOURCE macro definition
outside of the include file.

This change is required to be able to define another TRACE_SOUCE inside
the mux_quic.c for a dedicated trace module.
diff --git a/Makefile b/Makefile
index 46da6fb..9e861a2 100644
--- a/Makefile
+++ b/Makefile
@@ -626,7 +626,7 @@
 OPTIONS_OBJS += src/quic_sock.o src/proto_quic.o src/xprt_quic.o src/quic_tls.o \
                 src/quic_frame.o src/quic_cc.o src/quic_cc_newreno.o src/mux_quic.o \
                 src/cbuf.o src/qpack-dec.o src/qpack-tbl.o src/h3.o src/qpack-enc.o \
-                src/hq_interop.o src/cfgparse-quic.o
+                src/hq_interop.o src/cfgparse-quic.o src/quic_loss.o
 endif
 
 ifneq ($(USE_LUA),)