Add Bundle info to entity_get_info()

Problem/Motivation

Hey there, simple problem/fix for D7.

redirect_entity_simple entity doesn't define a 'bundles' array, but it does define ['entity keys']['bundle']. entity_get_info() is pretty explicit about this:

// If no bundle key is provided, assume a single bundle, named after
// the entity type.

Proposed resolution

We could refactor to define ['bundles']['redirect'] with ['label'] and ['admin']['path'] and ['access arguments'] etc, but unless there's value in that it's easier to just omit ['entity keys']['bundle'].

Remaining tasks

Review/commit patch - or just leave issue for our reference :)

User interface changes

None

API changes

Will include Bundle info in return value of entity_get_info().

Data model changes

None.