Move printBytes to meshUtils (#4424)

src/meshUtils.cpp

@@ -56,4 +56,12 @@ char *strnstr(const char *s, const char *find, size_t slen)
         s--;
     }
     return ((char *)s);
+}
+
+void printBytes(const char *label, const uint8_t *p, size_t numbytes)
+{
+    LOG_DEBUG("%s: ", label);
+    for (size_t i = 0; i < numbytes; i++)
+        LOG_DEBUG("%02x ", p[i]);
+    LOG_DEBUG("\n");
 }