test: Added test for init and destroy

Also changed a few things like destroy tanking a double pointer so that
is more secure and making sure before hand that capacity is not that
ridiculous of a size, still, shit can get pass but generally is fine

include/arraylist.h

@@ -16,6 +16,7 @@ typedef enum {
     ARRLIST_OK = 0,
     ARRLIST_OUT_OF_BOUNDS,
     ARRLIST_BAD_ALLOC,
+    ARRLIST_ALLOC_OVERFLOW,
     ARRLIST_EMPTY,
     ARRLIST_NULL_ARG,
     ARRLIST_INVALID_ELEM_SIZE,
@@ -23,7 +24,7 @@ typedef enum {
 } ArrayListErr;
 
 ArrayList *arraylist_init(size_t capacity, size_t elem_size);
-ArrayListErr arraylist_destroy(ArrayList *arr);
+ArrayListErr arraylist_destroy(ArrayList **arr);
 ArrayListErr arraylist_clear(ArrayList *arr);
 
 size_t arraylist_size(const ArrayList *arr);