RFR: 8247947: Build DirectShow Samples (Base Classes) from source checked into repo

[Alexander Matveev]

- Added DirectShow baseclasses to repository.
- Dependency on Windows SDK 7.1 DirectShow baseclasses was removed.

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Commit messages:
 - 8247947: Fixed files permissions
 - 8247947: Build DirectShow Samples (Base Classes) from source checked into repo

Changes: https://git.openjdk.java.net/jfx/pull/254/files
 Webrev: https://webrevs.openjdk.java.net/jfx/254/webrev.00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8247947
  Stats: 38685 lines in 73 files changed: 38674 ins; 8 del; 3 mod
  Patch: https://git.openjdk.java.net/jfx/pull/254.diff
  Fetch: git fetch https://git.openjdk.java.net/jfx pull/254/head:pull/254

PR: https://git.openjdk.java.net/jfx/pull/254