db: add runes tables and accessors.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

wallet/db.c

@@ -956,6 +956,8 @@ static struct migration dbmigrations[] = {
     {NULL, migrate_fill_in_channel_type},
     {SQL("ALTER TABLE peers ADD feature_bits BLOB DEFAULT NULL;"), NULL},
     {NULL, migrate_normalize_invstr},
+    {SQL("CREATE TABLE runes (id BIGSERIAL, rune TEXT, PRIMARY KEY (id));"), NULL},
+    {SQL("CREATE TABLE runes_blacklist (start_index BIGINT, end_index BIGINT);"), NULL},
 };
 
 /**