Adding upstream version 1.8.0.

Signed-off-by: Daniel Baumann <daniel@debian.org>

tests/input/psfsubset.csv

@@ -0,0 +1,73 @@
+.notdef
+.null
+Ampersand
+Apos
+Asterisk
+AtSgn
+CircumAccent
+Colon
+CombAcute
+CombCircum
+CombDiaer
+CombGrave
+CombRingAbv
+CombTilde
+Comma
+DollarSgn
+DottedCirc
+EqSgn
+ExclamationMrk
+FullStop
+GraveAccent
+GTSgn
+Hyphen_Soft
+Hyphen
+HyphenMinus
+LftCurlyBrac
+LftParen
+LftSqrBrac
+LowLine
+LtnCapA
+LtnCapADiaer
+LtnCapB
+LtnCapC
+LtnCapD
+LtnCapE
+LtnCapF
+LtnCapG
+LtnCapH
+LtnCapI
+LtnCapJ
+LtnCapK
+LtnCapL
+LtnCapM
+LtnCapN
+LtnCapO
+LtnCapP
+LtnCapQ
+LtnCapR
+LtnCapS
+LtnCapT
+LtnCapU
+LtnCapV
+LtnCapW
+LtnCapX
+LtnCapY
+LtnSmA
+LTSgn
+NonBreakingHyphen
+nonmarkingreturn
+NumSgn
+PercentSgn
+PlusSgn
+QstnMrk
+QuotMrk
+ReverseSolidus
+RtCurlyBrac
+RtParen
+RtSqrBrac
+Semicolon
+Solidus
+Space
+Tilde
+VertLine