[jfx-tests] RFR: 8315839: 3D shape tests fail because of invalid file path

[Jayathirth D V]

Currently only 18 out of 62 3D tests run properly in jfx-tests repo.
All the shape tests under "test/scenegraph/fx3d/shapes" and "test/scenegraph/fx3d/subscene/shapes" fail because they are not able to find image input they need.

Image files currently are at wrong place and they are moved to proper path where they are expected by these tests. This is first step for stabilizing 3D tests. Even with this change these test continue to fail because of some edge pixels are differing by minute value. Mostly we will add color tolerance to make these tests pass which will be taken up in follow-up bug.

After this change we don't see "java.lang.IllegalArgumentException: Invalid URL: Invalid URL or resource not found" in these tests.

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Commit messages:
 - 8315839: 3D shape tests fail because of invalid file path

Changes: https://git.openjdk.org/jfx-tests/pull/3/files
 Webrev: https://webrevs.openjdk.org/?repo=jfx-tests&pr=3&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8315839
  Stats: 0 lines in 4 files changed: 0 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jfx-tests/pull/3.diff
  Fetch: git fetch https://git.openjdk.org/jfx-tests.git pull/3/head:pull/3

PR: https://git.openjdk.org/jfx-tests/pull/3