int ifx_create_blob (int type, int mode, string param)
Creates an blob object.
type: 1 = TEXT, 0 = BYTE
mode: 0 = blob-object holds the content in memory, 1 = blob-object holds the content in file.
param: if mode = 0: pointer to the content, if mode = 1: pointer to the filestring.
Return FALSE on error, otherwise the new blob object-id.