Add option to change rendered mesh type (surfaceMesh/wireMesh)

Requires https://github.com/deathcap/voxel-engine/commit/40f893055215d7e6b7a49e0652cec20fcb75a1da
Refresh chunks when changing meshType

Requires https://github.com/deathcap/voxel-engine/commit/b3206df42bcec6487d9deee36a80bac6396073a6
Add option to change voxel mesher algorithm (culled/greedy)

Selected from https://github.com/maxogden/voxel/tree/master/meshers
Only including 'culled' and 'greedy' for now (not 'stupid' and 'monotone',
couldn't get either of those to work)
Update mesherName for voxel-engine default
Update to voxel-engine 0.20.0; tighten dev dependencies
Merge pull request #1 from deathcap/renderopts

Add render properties and update to voxel-engine 0.20.0