[scilab] Name init function name to avoid collision

Use SWIG_<module>_Init() function to init the module rather than
<module>_Init() as the latter can collide with a function being wrapped.

Fixes swig#745
Fixes swig#1739

Author: davidcl

CHANGES.current

@@ -7,6 +7,9 @@ the issue number to the end of the URL: https://github.com/swig/swig/issues/
 Version 4.1.0 (in progress)
 ===========================
 
+2022-02-01: davidcl
+            [Scilab] #745 use SWIG_<module>_Init() as a C module init function.
+
 2022-02-01: olly
 	    [OCaml] #2083 Fix to work when CAML_SAFE_STRING is on, which it is
 	    by default in recent Ocaml releases.

Lib/scilab/sciruntime.swg

@@ -40,7 +40,7 @@ SWIG_Scilab_TypeQuery(const char *name) {
 #ifdef __cplusplus
 extern "C"
 #endif
-int <module>_Init(SWIG_GatewayParameters) {
+int SWIG_<module>_Init(SWIG_GatewayParameters) {
   SWIG_InitializeModule(NULL);
   SWIG_CreateScilabVariables(pvApiCtx);
   swig_module_initialized = 1;

Source/Modules/scilab.cxx

@@ -228,9 +228,10 @@ class SCILAB:public Language {
 
     // Module initialization function
     String *gatewayInitFunctionName = NewStringf("%s_Init", gatewayName);
+    String *wrapperInitFunctionName = NewStringf("SWIG_%s_Init", gatewayName);
 
     /* Add initialization function to builder table */
-    addFunctionToScilab(gatewayInitFunctionName, gatewayInitFunctionName);
+    addFunctionToScilab(gatewayInitFunctionName, wrapperInitFunctionName);
 
     // Add helper functions to builder table
     addHelperFunctions();