Addition of FieldData

[nDimensionalSpace]

Any issues with me adding the ability to write a bit of global data, via the FieldData element? Attached screenshot indicates what I am thinking . . . Thx.

[nDimensionalSpace]

Now that I look at the screenshot more carefully, I will say the following:

• I won't use self-closing tags, and will use separate, explicit closing tags, per the current formatting convention.
• I wouldn't bother with the string array element, as that is likely an extension for our particular case. I really just want to get the float guy in there.

[mmorse1217]

Sure, that would be great! Feel free to make a pull request with your additions and, if you can, add a test so that I can verify the expected behavior before merging.

[nDimensionalSpace]

Heh, lets see if I did the fork+PR thing correctly . . .