Add a Name field to Armament for other traits to reference.
Add matrix helpers to Graphics.Util.
Add renderer support for matrix uniforms.
Add renderer support for additional vec* uniforms.
Expose depth buffer to render code.
Expose stencil buffer to render code.

The intention is to provide a layer for tracking shadow
rendering, so a single bit is sufficient for now.
Support Vertex objects with custom z coordinate.
Implement vxl parser.
Implement hva parser.
Store the voxel normals table in a palette.
Add core voxel rendering code.
Allow mods and maps to define voxel sequences.
Add VoxelRenderable to integrate voxel drawing with render traits.
Add a basic set of voxel render traits.
Add render trait for Mammoth Mk II.
Simplify admin promotion check in ValidateClient.

This also fixes a crash if we want to allow
multiple admins in a server.
Merge pull request #3370 from pchote/server-admin-fix

Simplify admin promotion check in ValidateClient.
Refactor Allies 01 objectives code
Refactor Allies 02 objectives code
Refactor Allies 03 objectives code