Add a .gitignore file for the src/ directory.

src/.gitignore

@@ -0,0 +1,56 @@
+*.lo
+*.o
+*.la
+.deps
+.libs
+Makefile
+Makefile.in
+asyncmsgq-test
+asyncq-test
+bt-proximity-helper
+channelmap-test
+client.conf
+close-test
+cpulimit-test
+cpulimit-test2
+daemon.conf
+default.pa
+envelope-test
+esdcompat
+flist-test
+gconf-helper
+get-binary-name-test
+hook-list-test
+interpol-test
+ipacl-test
+mainloop-test
+mainloop-test-glib
+mcalign-test
+memblock-test
+memblockq-test
+mix-test
+pabrowse
+pacat
+pacat-simple
+pacmd
+pactl
+paplay
+parec-simple
+pasuspender
+pax11publish
+proplist-test
+pulseaudio
+queue-test
+remix-test
+resampler-test
+rtpoll-test
+rtstutter
+sig2str-test
+smoother-test
+stripnul
+strlist-test
+sync-playback
+thread-mainloop-test
+thread-test
+utf8-test
+voltest