[code-reflection] Integrated: Simplified injection of Pre/Post calls Mutate,Access and Escape

[Gary Frost]

As we move toward buffer tracking I simplified injection (transform) for Mutate, Access and Escape calls. 

We still need to inject to inject params into dirty sets. So first dispath always copies... 

Fixed small bug in Life demo

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Commit messages:
 - Simplified injection of Pre/Post calls Mutate,Access and Escape

Changes: https://git.openjdk.org/babylon/pull/203/files
  Webrev: https://webrevs.openjdk.org/?repo=babylon&pr=203&range=00
  Stats: 120 lines in 5 files changed: 18 ins; 23 del; 79 mod
  Patch: https://git.openjdk.org/babylon/pull/203.diff
  Fetch: git fetch https://git.openjdk.org/babylon.git pull/203/head:pull/203

PR: https://git.openjdk.org/babylon/pull/203