Add .gitignore to exclude generated files from tracking

This was basically generated with "git ls-files -o --directory".

.gitignore

@@ -0,0 +1,29 @@
+*.o
+*.lo
+*.la
+*.a
+*.so
+.deps/
+.libs/
+COPYING
+INSTALL
+Makefile
+Makefile.in
+aclocal.m4
+autom4te.cache/
+check/config.sh
+config.guess
+config.h
+config.h.in
+config.log
+config.status
+config.sub
+configure
+depcomp
+glib-1.2.10/
+install-sh
+libtool
+ltmain.sh
+missing
+pkg-config
+stamp-h1