Method readUInt8

c++/src/Geospatial.cc:106–108

    WKBBuffer(const uint8_t* data, int64_t size) : data_(data), size_(size) {}

    uint8_t readUInt8() {
      return readChecked<uint8_t>();
    }

    uint32_t readUInt32(bool swap) {
      auto value = readChecked<uint32_t>();