autogen: export autogen'ed classes (#354)

Signed-off-by: Sorin Vatasoiu <Sorin.Vatasoiu@Point72.com>

Author: svatasoiu

csp/build/csp_autogen.py

@@ -152,7 +152,7 @@ def _generate_enum_class(self, enum_type):
         cspenum_decls = "\n".join(f"    static {enum_name} {x.name};" for x in enum_type)
 
         out = f"""
-class {enum_name} : public csp::CspEnum
+class CSP_PUBLIC {enum_name} : public csp::CspEnum
 {{
 public:
     // Raw value quick access
@@ -315,7 +315,7 @@ def _generate_struct_class(self, struct_type):
             )
 
         out = f"""
-class {struct_name} : public {base_class}
+class CSP_PUBLIC {struct_name} : public {base_class}
 {{
 public: