RFR: Refactored new ToolInput/Outputs so they reside in own packages and not in original interfaces

[Jiří Vaněk]

This PR is refactoring the long interfaces with many inner classes to logical packages.

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Commit messages:
 - Refactored new ToolInput/Outputs so they reside in own packages and not in original interfaces

Changes: https://git.openjdk.org/asmtools/pull/53/files
 Webrev: https://webrevs.openjdk.org/?repo=asmtools&pr=53&range=00
  Stats: 1873 lines in 47 files changed: 976 ins; 779 del; 118 mod
  Patch: https://git.openjdk.org/asmtools/pull/53.diff
  Fetch: git fetch https://git.openjdk.org/asmtools pull/53/head:pull/53

PR: https://git.openjdk.org/asmtools/pull/53