[Integration] Validate vector type layout in IPC messages

[asfimport]

We do not rigorously check in the integration tests whether the vector buffer layout is what we expect it to be in the schema metadata

Reporter: Wes McKinney / @wesm

Related issues:

• [C++] IPC writer sends buffer layout for dictionary rather than indices (is related to)

_{Note: This issue was originally created as ARROW-1362. Please see the migration documentation for further details.}

[asfimport]

Wes McKinney / @wesm:
Vector layout is no longer in the IPC metadata

[asfimport]

Todd Farmer / @toddfarmer:
Transitioning issue from Resolved to Closed to based on resolution field value.