add "generic" format string based encoder and decoder (scan_asn1generic,

fmt_asn1generic, see t10.c for example usage)
add "generic" asn.1 dumper (in t10.c)
fix some read off-by-one errors, minor cleanups
add real OID support
add bitstring support

scan_ldapstring.c

@@ -1,5 +1,4 @@
-#include <asn1.h>
-#include <ldap.h>
+#include "ldap.h"
 
 size_t scan_ldapstring(const char* src,const char* max,struct string* s) {
   return scan_asn1STRING(src,max,&s->s,&s->l);