prepare release v0.12.3
News
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-Version 0.12.3 - dev
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+Version 0.12.3 - 2020-05-15
+---------------------------
- BUGFIX: DXF R2010+ requires zero length tag 97 for HATCH/SplineEdge if no fit points exist (vshu3000)
- BUGFIX: Export order of XDATA and embedded objects (vshu3000)
