Convert TXT to GCT

Several different gct file types exist, which means it is likely that at least some of them are text based and can be generated from text sources, which is what converting txt to gct essentially represents. For example Genepattern .gct files can be created from text (although tab delimited) file and same goes for other gene sequence files.

Note: txt to gct conversion is not related to GeckoCodes, just same search string.