Posts data to a resource using the WebDAV POST method.
async webdav.postToResource(resourceURI : string, postData : Uint8Array): Promise<void>
Posts data to the resource ResourceURI using the WebDAV POST method. The posted data is taken from PostData. The server response text is received through the Transfer event, and the HTTP response headers through the Header event. If LocalFile is not empty the data (not the headers) is written there as well.