Add a means to debug the internal state of the diagram object.

Until we can render this new GL chart for real.

Change-Id: Iaf1a5fb903572c33d512705c9073b3795187f89b
Start using common symbols for textural UNO property names.

This will make it easier to track all uses of a UNO property name using
symbol database lookup, which is much faster and more accurate than grepping.

Change-Id: I8c2857504c29bcce01eb8c1f406dcbfb24331510
Some debugging output of GL chart.

Change-Id: Ia216358085378b449626f9c9f36e63a65b7a2669
Trying to move this RoundedEdge property from Diagram to GL3DBarChartType.

Then things stop working. Go figure.

Change-Id: I38893b20104537a64d279063c7b7dd708efb0d2f
Too long a line.

Change-Id: I0b8f1b3b55cf0374ce1ff81d7798ea60848208d4
Transfer back properties from the chart type object to template object.

Change-Id: I3484a2ae0141087835e34e4e174bdc24b3357854
Let's use define constants here rather than string values....

Easier to keep track of their call sites.

Change-Id: I5f874194425ae8f5043bef45cce63a5e1d51a400
Add API wrapper to handle properties of new GL3D chart type.

Now the new proprety gets properly imported and exported to and from ODF.

Also, more on replacing string literals with define macro constants.

Change-Id: I4b773d68610a8aeaeb239901dac166e4dc2dd80d