hg: panama/dev: Expand doc on Vector and operations.

[paul.sandoz at oracle.com]

Changeset: b368e098071d
Author:    psandoz
Date:      2018-04-02 18:04 -0700
URL:       http://hg.openjdk.java.net/panama/dev/rev/b368e098071d

Expand doc on Vector and operations.

! src/jdk.incubator.vector/share/classes/jdk/incubator/vector/ByteVector.java
! src/jdk.incubator.vector/share/classes/jdk/incubator/vector/DoubleVector.java
! src/jdk.incubator.vector/share/classes/jdk/incubator/vector/FloatVector.java
! src/jdk.incubator.vector/share/classes/jdk/incubator/vector/IntVector.java
! src/jdk.incubator.vector/share/classes/jdk/incubator/vector/LongVector.java
! src/jdk.incubator.vector/share/classes/jdk/incubator/vector/ShortVector.java
! src/jdk.incubator.vector/share/classes/jdk/incubator/vector/Vector.java
! src/jdk.incubator.vector/share/classes/jdk/incubator/vector/X-Vector.java.template