Added snd_card_type_string_to_enum and snd_card_type_enum_to_string functions.

- the /usr/share/alsa/cards.conf file contains the translation table
Added snd_sctl_build and snd_sctl_free functions.
Recoded the surround plugin to use the surround.conf file.
 - the /usr/share/alsa/surround.conf file contains the surround configuration

test/Makefile.am

@@ -1,5 +1,5 @@
 check_PROGRAMS=control mixer switches pause pcm pcmtest latency seq \
-	       playmidi1 timer loopback rawmidi midiloop
+	       playmidi1 timer loopback rawmidi midiloop cardid
 
 control_LDADD=../src/libasound.la
 mixer_LDADD=../src/libasound.la
@@ -14,6 +14,7 @@ timer_LDADD=../src/libasound.la
 loopback_LDADD=../src/libasound.la
 rawmidi_LDADD=../src/libasound.la
 midiloop_LDADD=../src/libasound.la
+cardid_LDADD=../src/libasound.la
 
 INCLUDES=-I$(top_srcdir)/include
 # CFLAGS=-static -Wall -pipe -g