RFR: Create forges from service providers

[Robin Westberg]

Hi all,

Please review this refactoring that allows forges to be created from service providers.

Best regards,
Robin

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Commits:
 - 063bcf6b: Create Forges from service providers

Changes: https://git.openjdk.java.net/skara/pull/223/files
 Webrev: https://webrevs.openjdk.java.net/skara/223/webrev.00
  Stats: 2799 lines in 33 files changed: 1446 ins; 1294 del; 59 mod
  Patch: https://git.openjdk.java.net/skara/pull/223.diff
  Fetch: git fetch https://git.openjdk.java.net/skara pull/223/head:pull/223

PR: https://git.openjdk.java.net/skara/pull/223