Add remaining haskell book exercises

Haskell-book/26/Morra/package.yaml

@@ -0,0 +1,21 @@
+name:                Morra
+version:             0.1.0.0
+license:             BSD3
+author:              "Eugen Wissner"
+maintainer:          "belka@caraus.de"
+copyright:           "2018 Eugen Wissner"
+
+dependencies:
+- base >= 4.7 && < 5
+- random
+- transformers
+- ansi-terminal
+
+executables:
+  morra:
+    main:                Main.hs
+    source-dirs:         app
+    ghc-options:
+    - -threaded
+    - -rtsopts
+    - -with-rtsopts=-N