Add project files.

3rd-party/curl-7.52.1/docs/cmdline-opts/data-binary.d

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+Long: data-binary
+Arg: <data>
+Help: HTTP POST binary data
+Protocols: HTTP
+---
+This posts data exactly as specified with no extra processing whatsoever.
+
+If you start the data with the letter @, the rest should be a filename.  Data
+is posted in a similar manner as --data does, except that newlines and
+carriage returns are preserved and conversions are never done.
+
+If this option is used several times, the ones following the first will append
+data as described in --data.