make OpenGL debug messages more readable

Change-Id: I2e90acaa0fe1fb47559ddd7b898874e12f494a9a
OOXML export validation fixes, related fdo#54651

We don't exactly know right now how to fill these elements so just don't
export them.

Change-Id: I78f9c67aaf4cec4dfcae3137ba137121ca005fd9
don't write axId for dougnught chart, related fdo#63114

Change-Id: I75168888ff8da6f18089311a99135c124c7a7e72
prevent invalid OOXML chart files, related #i75121#

Change-Id: I8e34fd2941ce98a30d27861db2c6a625ff873aa6
prevent invalid OOXML chart files, related #i82905#

Change-Id: I27166772c6eefb4e49eb4c097683a1c6aea4476a