RFR: 8277976: Break up SEQUENCE in X509Certiticate#getSubjectAlternativeNames() in otherName

[Weijun Wang]

The enhancement adds two extra items in the `getSubjectAlternativeNames()` output for an OtherName.

It also fix several errors:
1. In `OtherName.java`, `nameValue` should be the value inside `CONTEXT [0]` without the tag and length bytes.
2. The argument in constructor `extClass.getConstructor(Object.class)` is suspicious. Maybe it meant `byte[]`.

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Commit messages:
 - 8277976: Break up SEQUENCE in X509Certiticate#getSubjectAlternativeNames() in otherName

Changes: https://git.openjdk.java.net/jdk/pull/7167/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=7167&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8277976
  Stats: 136 lines in 4 files changed: 117 ins; 0 del; 19 mod
  Patch: https://git.openjdk.java.net/jdk/pull/7167.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/7167/head:pull/7167

PR: https://git.openjdk.java.net/jdk/pull/7167