Code to implement HTTP requests done. Also, rewrote str_to_int64, str_to_double

luprex/core/cpp/streambuffer.hpp

@@ -310,6 +310,7 @@ public:
     void write_uint16(uint64_t v);
     void write_uint32(uint64_t v);
     void write_uint64(uint64_t v);
+    void write_char(char c);
     void write_float(float f);
     void write_double(double d);
 
@@ -325,6 +326,7 @@ public:
     uint16_t read_uint16() { return read_int16(); }
     uint32_t read_uint32() { return read_int32(); }
     uint64_t read_uint64() { return read_int64(); }
+    char read_char();
     float read_float();
     double read_double();