EMF: More useful debugging output.

Change-Id: I2aa0e97878db62275d794be43a7d351e5ae25f1c
EMF+: Implement line dashing.

Change-Id: I9eb21c0a8b5baa5b0080845f61b12fc65034d959
EMF+: Small cleanup & more logging in preparation for line starts & ends.

Change-Id: I584f8a1680c6aa7b51b948a00213c285387b77c3
EMF+: Parse custom line cap data for start and end line caps.

Change-Id: I3a5f79e22500f53c3c61c173e0827c250b2a8fd0
EMF+: Render custom line cap data.

Change-Id: Ic5e2e2d105fb006503b63e4e162d4dc09dab9e68
EMF+: Set the stroke attributes on the custom line caps.

This finally makes the rendering of the custom line caps nice & complete.

Change-Id: If35ef1c44f34f5d5e6c50789c907105d03e96fca