Ogre 1 Selection highlighting issue

**Original report ([archived issue](https://osrf-migration.github.io/ignition-gh-pages/#!/ignitionrobotics/ign-rendering/issues/59)) by John Shepherd (Bitbucket: [John Shepherd](https://bitbucket.org/%7Bc4803212-effe-4921-9323-02cd01b8bc9c%7D/), GitHub: [jshep1](https://github.com/jshep1)).**

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# Description

After the selection capabilities were added, I noticed that the objects in Ogre 1 were not being highlighted when selected. There is a hacky fix seen in [this PR](https://osrf-migration.github.io/ignition-gh-pages/#!/ignitionrobotics/ign-gazebo/pull-requests/544), but this would introduce a memory leak and not solve the actual problem. There seems to be some sort of inconsistency between the Ogre 1 and Ogre 2 versions of Visual and Material that live within rendering - Ogre 2 exhibits the desired behavior.

# Steps to Reproduce

1. `ign gazebo rolling_shapes.sdf`
2. Select an entity

**Expected behavior:**

The entity should be highlighted when selected.

**Actual behavior:**

No visual change occurs (the entity is still registered as selected though).

**Reproduces how often:**

100%

# Versions

Currently in blueprint and citadel