Add oxView output option to tiamat script

[Akodiat]

Use flag --print-oxview to get an oxview file with correct basepairing information

This works fine for the example dnajson, but needs testing on other tiamat json files:

• [x] Verify that this works on more than just the example file

[Akodiat]

I have tried on a few different files now and seems to work well.