[PATCH] fdo#43209 - Implement line cap butt, round and square as defined in ODF 1.2

[Regina Henschel]

Hi all,

the patch is attached to fdo#43209

The attached patch has a wrong bug number in the comment, please correct 
it to fdo#43209. I don't know, how to correct a wrong local commit message.

The patch brings the line cap feature from AOO3.4 to LO3.6. It is 
technical correct (hopefully). The whole patch is under Apache License 
2.0. The patch is not completely done by me, but second author is Armin 
Le Grand, Armin.Le.Grand at me.com. Does a way exists to honor two authors 
in the author-field?

Compared to AOO3.4 I had to make some minor technical changes to get it 
apply-able to LO3.6, e.g. sal_Bool -> bool.

The patch does not contain license marks on the changes, because I do 
not know, if those are needed, and if it is needed, in which form this 
has to be done.

The two new files svx/inc/svx/xlncapit.hxx and 
offapi/com/sun/star/drawing/LineCap.idl have got Apache License 2.0 
headers. I don't know whether this has to be changed to another header.

Kind regards
Regina