[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 #745
Fixes #1739

Source/Modules/scilab.cxx

@@ -228,9 +228,10 @@ public:
 
     // 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();