Add data to transfer as dummy string.

[John-Holt-Tessella]

Description of work

Enable you to drag and drop in the synoptic editor. There is no supporting code and this is not the right way to do it. There will be a follow up that will fix this including rcptt tests.

To test

ISISComputingGroup/IBEX#2563

Acceptance criteria

1. Can drag and drop synoptic components in the tree view.

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Code Review

• Is the code of an acceptable quality?
• Does the code conform to the coding standards? Is it well structured with small focussed classes/methods/functions?
• Have no new checkstyle warnings been introduced? Check via Jenkins
• Are there unit tests in place? Are the unit tests small and test the a class in isolation?
• Are there automated system tests in place? Do they test a minimal set of functionality and leave the gui as close as possible to its original state?
• Has the manual system tests spreadsheet been updated?
  • Manual system tests for the functionality should be added if there are no automated tests
  • Manual system tests can be removed from the template if they are covered by suitable automated tests
• Did any existing system test break as a result of the current changes?
• Have the changes been documented in the release notes. If so, do they describe the changes appropriately?
• If an OPI has been modified, does it conform to the style guidelines? There is a script called check_opi_format.py to help with this.

Functional Tests

• Do changes function as described? Add comments below that describe the tests performed.
• How do the changes handle unexpected situations, e.g. bad input?
• Has developer documentation been updated if required?
• Have any new plugins been added to the appropriate feature.xml? You can check if this is needed by validating plugins as per method at https://github.com/ISISComputingGroup/ibex_developers_manual/wiki/Common-Eclipse-Issues

Final Steps

• Reviewer has moved the release notes entry for this ticket in the "Changes merged into master" section