feat: add macros for creating int64 and uint64 integers

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---

Author: kgryte

lib/node_modules/@stdlib/napi/include/stdlib/napi.h

@@ -65,7 +65,9 @@
 #include "stdlib/napi/create_complex_like.h"
 #include "stdlib/napi/create_double.h"
 #include "stdlib/napi/create_int32.h"
+#include "stdlib/napi/create_int64.h"
 #include "stdlib/napi/create_uint32.h"
+#include "stdlib/napi/create_uint64.h"
 #include "stdlib/napi/export.h"
 
 #endif // !STDLIB_NAPI_H

lib/node_modules/@stdlib/napi/manifest.json

@@ -76,7 +76,9 @@
         "@stdlib/napi/create-complex-like",
         "@stdlib/napi/create-double",
         "@stdlib/napi/create-int32",
+        "@stdlib/napi/create-int64",
         "@stdlib/napi/create-uint32",
+        "@stdlib/napi/create-uint64",
         "@stdlib/napi/export"
       ]
     }