[bug#42689] add sbcl-cl-livesupport

[Adam Kandur]

(define-public sbcl-cl-livesupport
  (let ((commit "71e6e412df9f3759ad8378fabb203913d82e228a")
(revision "1"))
    (package
      (name "sbcl-livesupport")
      (version (git-version "0.0.0" revision commit))
      (source
       (origin
         (method git-fetch)
         (uri (git-reference
               (url "https://github.com/cbaggers/livesupport";)
               (commit commit)))
         (file-name (git-file-name name version))
         (sha256
          (base32 "1rvnl0mncylbx63608pz5llss7y92j7z3ydambk9mcnjg2mjaapg"))))
      (build-system asdf-build-system/sbcl)
      (home-page "https://github.com/cbaggers/livesupport";)
      (synopsis "Some helpers that make livecoding at little easier")
      (description "A macro commonly used in livecoding to enable continuing 
when errors are raised. Simply wrap around a chunk of code and it provides a 
restart called 'continue' which ignores the error and carrys on from the end of 
the body. I usually wrap this around the code 'step' function in my main loop.")
      (license license:bsd-2))))