REORG: sock_raw: rename the files raw_sock*

The "raw_sock" prefix will be more convenient for naming functions as
it will be prefixed with the data layer and suffixed with the data
direction. So let's rename the files now to avoid any further confusion.

The #include directive was also removed from a number of files which do
not need it anymore.
diff --git a/Makefile.osx b/Makefile.osx
index 31a7f99..9469be9 100644
--- a/Makefile.osx
+++ b/Makefile.osx
@@ -106,7 +106,7 @@
        src/uri_auth.o src/standard.o src/buffers.o src/log.o src/task.o \
        src/time.o src/fd.o src/pipe.o src/regex.o src/cfgparse.o src/server.o \
        src/checks.o src/queue.o src/frontend.o src/proxy.o src/proto_uxst.o \
-       src/proto_http.o src/sock_raw.o src/appsession.o src/backend.o \
+       src/proto_http.o src/raw_sock.o src/appsession.o src/backend.o \
        src/peers.o src/stream_interface.o src/dumpstats.o src/proto_tcp.o \
        src/session.o src/hdr_idx.o src/ev_select.o src/signal.o \
        src/lb_chash.o src/lb_fwlc.o src/lb_fwrr.o src/lb_map.o src/lb_fas.o \