Add libkmod-loaded to handle live modules information

All the functions needed by a lsmod binary are in place.
test/test-loaded.c implements it with the same output of lsmod.
diff --git a/Makefile.am b/Makefile.am
index 57a1da3..a6b81db 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -31,7 +31,8 @@
 	libkmod/libkmod-private.h \
 	libkmod/libkmod-util.h \
 	libkmod/libkmod.c \
-	libkmod/libkmod-list.c
+	libkmod/libkmod-list.c \
+	libkmod/libkmod-loaded.c
 
 EXTRA_DIST += libkmod/libkmod.sym
 
@@ -42,8 +43,11 @@
 pkgconfigdir = $(libdir)/pkgconfig
 pkgconfig_DATA = libkmod/libkmod.pc
 
-TESTS = test/test-init
+TESTS = test/test-init test/test-loaded
 
-check_PROGRAMS = test/test-init
+check_PROGRAMS = test/test-init test/test-loaded
 test_test_init_SOURCES = test/test-init.c
 test_test_init_LDADD = libkmod/libkmod.la
+
+test_test_loaded_SOURCES = test/test-loaded.c
+test_test_loaded_LDADD = libkmod/libkmod.la