Add hbs default templates

Finally cleaned it up and have release candidate.  I've kept `jade` as a the default for now, not against changing it to `hbs` but figured lets get it out first and have feedback.

Adjustments
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* Inside of the template folder I added `default-jade` and moved all the original jade templates into and then created `default-hbs` and placed the new handlebars code.
* Currently only the `.hbs` file extension is supported which is what most projects use, but we should note in the documentation that we do not support `.handlebars`.  Not opposed to supporting it if the community wants it to happen.
* Within the generator I added the necessary code to copy the `hbs` files similar to `jade`


Notes
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* I'm not an EJS expert, the logic operations could maybe be simplified `isViewEngineJade || isViewEngineHBS`
* I left notes for additional ghost hbs helpers to port, will figure out how to best to abstract out.