add retrieve methods for 3270

[CaroMac]

Is there a Galasa method/class that will extract data of the 3270 screen and save it in a variable?

dev.galasa.zos3270.ITerminal.retrieveScreen() returns a basic string representation of the screen I believe.
And you can get the ITerminal instance injected into your test from the 3270manager.
Is that what you were asking about ? Does that help ?
Or perhaps some of the other ITerminal methods are what you want...
eg: retrieveFieldAtCursor, retrieveFieldTextAfterFieldWithString, retrieveText, retrieveTextAtCursor ?

[CaroMac]

Raised to investigate adding further info / code snippets around this.