Added .gitignore files

.gitignore

+/open_c/config.h
+/win32/config.h
+/man/
+
+/aclocal.m4
+/autom4te.cache/
+/compile
+/config.guess
+/config.h
+/config.h.in
+/config.log
+/config.status
+/config.sub
+/configure
+/depcomp
+/install-sh
+/libtool
+/ltmain.sh
+/missing
+/stamp-h1
+
+Doxyfile
+Makefile
+Makefile.in
+.deps
+.libs
+*.a
+*.la
+*.lo
+*.o

libsofia-sip-ua-glib/docs/.gitignore

+/html/
+*.doxytags

libsofia-sip-ua/.gitignore

+/features/sofia-sip/sofia_features.h
+/http/http_parser_table.c
+/http/http_tag.c
+/http/http_tag_ref.c
+/http/sofia-sip/http_protos.h
+/http/sofia-sip/http_tag.h
+/iptsec/auth_tag_ref.c
+/msg/msg_mime_table.c
+/msg/sofia-sip/msg_mime_protos.h
+/msg/sofia-sip/msg_protos.h
+/msg/test_protos.h
+/msg/test_table.c
+/nea/nea_tag_ref.c
+/nta/nta_tag_ref.c
+/nth/nth_tag_ref.c
+/nua/nua_tag_ref.c
+/sdp/sdp_tag_ref.c
+/sip/sip_parser_table.c
+/sip/sip_tag.c
+/sip/sip_tag_ref.c
+/sip/sofia-sip/sip_extra.h
+/sip/sofia-sip/sip_hclasses.h
+/sip/sofia-sip/sip_protos.h
+/sip/sofia-sip/sip_tag.h
+/soa/soa_tag_ref.c
+/stun/stun_tag_ref.c
+/su/addrinfo
+/su/localinfo
+/su/sofia-sip/stamp-h2
+/su/sofia-sip/su_configure.h
+/su/su_tag_ref.c
+/tport/tport_tag_ref.c
+/url/url_tag_ref.c

libsofia-sip-ua/docs/.gitignore

+/Doxyfile.rfc
+/Doxyfile.version
+/html/
+/sofia-footer.html
+*.doxytags

m4/.gitignore

+/libtool.m4
+/lt*.m4

packages/.gitignore

+*.pc
+*.spec

utils/.gitignore

+/sip-date
+/sip-dig
+/sip-options
+
+*.bak