Integrated: Readme and tutorial

[Alexandre Iline]

Recovered tutorial from old java.net workspace.
Added a readme.

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Commit messages:
 - trailing spaces
 - tabs and leading spaces
 - Added README, tutorial.

Changes: https://git.openjdk.org/jemmy-v2/pull/8/files
  Webrev: https://webrevs.openjdk.org/?repo=jemmy-v2&pr=8&range=00
  Stats: 865 lines in 16 files changed: 864 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jemmy-v2/pull/8.diff
  Fetch: git fetch https://git.openjdk.org/jemmy-v2.git pull/8/head:pull/8

PR: https://git.openjdk.org/jemmy-v2/pull/8