Merge PR99 and its fixes to support parsing Information Object and Information Object Set

This is a collection of works :

1. Based on @zhanglei002's pull request 99.

2. A fix by @AuthenticEshkinKot and merged by @mouse07410 at
   commit 2c8d366bbe1fc4e4c041e9b0eb9779f8a42d754b of https://github.com/mouse07410/asn1c
   to support parsing of Information Object and Information Object Set

3. A fix by @Uri Blumenthal in asn1fix_derefv.c at :
   commit ec0ade4f87c807e763e3f35fc5466adb6dda3473 of https://github.com/mouse07410/asn1c
   to solve crash on asn1p_value_free().

4. My pull request 18 to @mouse07410's https://github.com/mouse07410/asn1c to solve
   problems found during parsing ASN.1 modules of S1AP, RANAP and J2735-201603.

5. My pull request 22 to @mouse07410's https://github.com/mouse07410/asn1c to solve issue 147
   and to solve the problem during parsing ASN.1 module of NBAP.

6. My pull request 23 to @mouse07410's https://github.com/mouse07410/asn1c to fix memory leakage
   introduced in aforementioned commits.
   Most code changes are the same as pull request 153 to this repository.

7. A fix of my bug in item 6 which result asn1c crash, fixed by @mouse07410.
diff --git a/libasn1parser/asn1p_ref.h b/libasn1parser/asn1p_ref.h
index dc7a716..0f1cfe6 100644
--- a/libasn1parser/asn1p_ref.h
+++ b/libasn1parser/asn1p_ref.h
@@ -37,13 +37,14 @@
 	int comp_count;	/* Number of the components in the reference name. */
 	int comp_size;	/* Number of allocated structures */
 
+	struct asn1p_module_s *module;	/* Defined in module */
 	int _lineno;	/* Number of line in the file */
 } asn1p_ref_t;
 
 /*
  * Constructor and destructor.
  */
-asn1p_ref_t *asn1p_ref_new(int _lineno);
+asn1p_ref_t *asn1p_ref_new(int _lineno, asn1p_module_t *mod);
 void asn1p_ref_free(asn1p_ref_t *);
 
 asn1p_ref_t *asn1p_ref_clone(asn1p_ref_t *ref);