Add hashes to unit-ids created by hadrian

hadrian/hadrian.cabal

hadrian/src/Context.hs

hadrian/src/Hadrian/BuildPath.hs

hadrian/src/Hadrian/Haskell/Cabal.hs

hadrian/src/Hadrian/Haskell/Cabal/Parse.hs

hadrian/src/Hadrian/Haskell/Hash.hs

hadrian/src/Hadrian/Haskell/Hash.hs-boot

hadrian/src/Hadrian/Package.hs

hadrian/src/Rules.hs

hadrian/src/Rules/BinaryDist.hs

hadrian/src/Rules/CabalReinstall.hs

hadrian/src/Rules/Documentation.hs

hadrian/src/Rules/Generate.hs

hadrian/src/Rules/Library.hs

hadrian/src/Rules/Register.hs

hadrian/src/Settings/Builders/Cabal.hs

hadrian/src/Settings/Builders/Ghc.hs

hadrian/src/Settings/Builders/Haddock.hs

testsuite/driver/testlib.py

testsuite/tests/backpack/cabal/bkpcabal02/all.T