Add missing test DXF-file.

test/models/DXF/lineTest

@@ -0,0 +1,190 @@
+999
+VISION3D DXF
+0
+SECTION
+2
+HEADER
+9
+$ACADVER
+1
+AC1006
+9
+$INSBASE
+10
+0.0
+20
+0.0
+30
+0.0
+9
+$EXTMIN
+10
+0.0
+20
+0.0
+9
+$EXTMAX
+10
+1000.0
+20
+1000.0
+9
+$LINMIN
+10
+0.0
+20
+0.0
+9
+$LINMAX
+10
+1000.0
+20
+1000.0
+0
+ENDSEC
+0
+SECTION
+2
+TABLES
+0
+TABLE
+2
+LTYPE
+70
+1
+0
+LTYPE
+2
+CONTINUOUS
+70
+64
+3
+Solid line
+72
+65
+73
+0
+40
+0.000000
+0
+ENDTAB
+0
+TABLE
+2
+LAYER
+70
+6
+0
+LAYER
+2
+1
+70
+64
+62
+7
+6
+CONTINUOUS
+0
+ENDTAB
+0
+TABLE
+2
+STYLE
+70
+0
+0
+ENDTAB
+0
+ENDSEC
+0
+SECTION
+2
+BLOCKS
+0
+ENDSEC
+0
+SECTION
+2
+ENTITIES
+0
+3DFACE
+8
+1
+62
+1
+10
+-0.5
+20
+-0.5
+30
+-0.5
+11
+-0.5
+21
+0.5
+31
+-0.5
+12
+0.5
+22
+0.5
+32
+-0.5
+13
+0.5
+23
+-0.5
+33
+-0.5
+0
+3DFACE
+8
+1
+62
+1
+10
+-0.5
+20
+-0.5
+30
+-0.5
+11
+0.5
+21
+-0.5
+31
+-0.5
+12
+0
+22
+-0.5
+32
+0.5
+13
+0
+23
+-0.5
+33
+0.5
+0
+LINE
+8
+1
+62
+1
+10
+0
+20
+-0.5
+30
+0.5
+11
+0
+21
+0.5
+31
+-0.5
+0
+ENDSEC
+0
+EOF