A helper object for form sections containing generic, non-file data.
This helper object is used similarly to the WWWForm method WWWForm.AddData. It is used to define non-file form sections.
| contentType | Returns the value to use in this section's Content-Type header. | 
| fileName | Returns a string denoting the desired filename of this section on the destination server. | 
| sectionData | Returns the raw binary data contained in this section. Will not return null or a zero-length array. | 
| sectionName | Returns the name of this section, if any. | 
| MultipartFormDataSection | Raw data section, unnamed and no Content-Type header. |