(http client) Add support for multipart HTTP POST upload + (ixsentry) Add support for uploading a minidump to sentry

ws/ws.h

@@ -148,4 +148,10 @@ namespace ix
                              const ix::SocketTLSOptions& tlsOptions,
                              const std::string& remoteHost,
                              bool verbose);
+
+    int ws_sentry_minidump_upload(const std::string& metadataPath,
+                                  const std::string& minidump,
+                                  const std::string& project,
+                                  const std::string& key,
+                                  bool verbose);
 } // namespace ix