Removed publicly unused template specialisations from the generated symbols.

Signed-off-by: Dimitar Dobrev <dpldobrev@protonmail.com>

src/Generator/Passes/GenerateSymbolsPass.cs

@@ -15,6 +15,7 @@ namespace CppSharp.Passes
         {
             VisitOptions.VisitClassBases = false;
             VisitOptions.VisitClassFields = false;
+            VisitOptions.VisitClassTemplateSpecializations = false;
             VisitOptions.VisitEventParameters = false;
             VisitOptions.VisitFunctionParameters = false;
             VisitOptions.VisitFunctionReturnType = false;

src/Generator/Passes/TrimSpecializationsPass.cs

@@ -12,6 +12,7 @@ namespace CppSharp.Passes
         public TrimSpecializationsPass()
         {
             VisitOptions.VisitClassBases = false;
+            VisitOptions.VisitClassTemplateSpecializations = false;
             VisitOptions.VisitEventParameters = false;
             VisitOptions.VisitFunctionParameters = false;
             VisitOptions.VisitFunctionReturnType = false;