RFR: Refactored new ToolInput/Outputs so they reside in own packages and not in original interfaces [v3]

[Jiří Vaněk]

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

Jiří Vaněk has refreshed the contents of this pull request, and previous commits have been removed. The incremental views will show differences compared to the previous content of the PR. The pull request contains two new commits since the last revision:

 - Added licence headers
 - Removed unused imports

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Changes:
  - all: https://git.openjdk.org/asmtools/pull/53/files
  - new: https://git.openjdk.org/asmtools/pull/53/files/204a9d4a..ec0b6958

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=asmtools&pr=53&range=02
 - incr: https://webrevs.openjdk.org/?repo=asmtools&pr=53&range=01-02

  Stats: 399 lines in 18 files changed: 397 ins; 2 del; 0 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