[jdk11u-dev] RFR: 8261336: IGV: enhance default filters

[Goetz Lindenmaier]

I backport this for parity with 11.0.18-oracle.

I resolved copyrights in type.c/hpp
I replaced enum class Category in type.hpp by an old style enum.
I had to exclude VectorA in a switch as it is not introduced in 11 yet.
Unfortunately, layer.xml contains trailing white space in the original patch.

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Commit messages:
 - Backport 16bd7d381f498ed659d2b1b372458d86fbbef275

Changes: https://git.openjdk.org/jdk11u-dev/pull/1468/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk11u-dev&pr=1468&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8261336
  Stats: 375 lines in 25 files changed: 292 ins; 44 del; 39 mod
  Patch: https://git.openjdk.org/jdk11u-dev/pull/1468.diff
  Fetch: git fetch https://git.openjdk.org/jdk11u-dev pull/1468/head:pull/1468

PR: https://git.openjdk.org/jdk11u-dev/pull/1468