Add visibility pragma to hiload library header.

Add hiload to minimal

include/hiload/hiload.h

@@ -5,6 +5,9 @@
 extern "C" {
 #endif
 
+// Allows using -fvisibility=hidden by default, decreasing visible symbols
+#pragma GCC visibility push(default)
+
 // Return codes for reload_module
 typedef enum {
     HI_RELOAD_SUCCESS = 0,
@@ -15,11 +18,17 @@ typedef enum {
 
 /* Initialiez the module. Must be called before anything else */
 int hi_init();
+
 /* Frees memory and cleans up  */
 void hi_deinit();
+
+/* Print a random assortment of information from current state  */
 void hi_print_module_infos();
+
+/* Reload module identified by the name */
 ReloadResult hi_reload_module(const char *module_name);
 
+#pragma GCC visibility pop
 #ifdef __cplusplus
 }
 #endif