Removes ostream inclusion from public headers (#364)

close #361

include/boost/redis/resp3/impl/type.ipp

@@ -8,6 +8,8 @@
 
 #include <boost/assert.hpp>
 
+#include <ostream>
+
 namespace boost::redis::resp3 {
 
 auto to_string(type t) noexcept -> char const*

include/boost/redis/resp3/node.hpp

@@ -9,6 +9,10 @@
 
 #include <boost/redis/resp3/type.hpp>
 
+#include <cstddef>
+#include <string>
+#include <string_view>
+
 namespace boost::redis::resp3 {
 
 /** @brief A node in the response tree.

include/boost/redis/resp3/parser.hpp

@@ -12,7 +12,6 @@
 #include <boost/system/error_code.hpp>
 
 #include <array>
-#include <cstdint>
 #include <optional>
 #include <string_view>
 

include/boost/redis/resp3/type.hpp

@@ -9,9 +9,8 @@
 
 #include <boost/assert.hpp>
 
-#include <ostream>
-#include <string>
-#include <vector>
+#include <cstddef>
+#include <iosfwd>
 
 namespace boost::redis::resp3 {