Add remaining haskell book exercises

Haskell-book/14/qc/qc.cabal

@@ -0,0 +1,32 @@
+name:           qc
+version:        0.1.0.0
+author:         Eugen Wissner
+maintainer:     belka@caraus.de
+category:       Math
+build-type:     Simple
+cabal-version:  >= 1.10
+
+library
+  hs-source-dirs: src
+  build-depends: base >= 4.7 && < 5
+               , QuickCheck
+  exposed-modules: UsingQuickCheck
+  ghc-options: -Wall
+  default-language: Haskell2010
+
+test-suite tests
+  type: exitcode-stdio-1.0
+  main-is: UsingQuickCheckTest.hs
+  hs-source-dirs: tests
+  ghc-options: -Wall
+  build-depends: base >= 4.7 && < 5
+               , QuickCheck
+               , qc
+
+test-suite idempotence
+  type: exitcode-stdio-1.0
+  main-is: Idempotence.hs
+  hs-source-dirs: tests
+  ghc-options: -Wall
+  build-depends: base >= 4.7 && < 5
+               , QuickCheck