[cvs-nhc98] patch applied (yhc): Add a .cabal file for Yhc.Core (not yet dist'able, since lacking the included but not exported modules)

[Neil Mitchell]

Sun Dec 30 10:38:49 PST 2007  Neil Mitchell
  * Add a .cabal file for Yhc.Core (not yet dist'able, since lacking the included but not exported modules)

    A ./src/libraries/core/LICENSE
    A ./src/libraries/core/Setup.hs
    A ./src/libraries/core/yhccore.cabal