Template Seperation

Some light testing was done and seems fine but i did run in to some errors through the process. I think i narrowed it down to issues with the state of the VS Exp setup, but im not 100% confident in the changes.

## Templates
* Removed Template zips
* Removed Template files
* Created Template Folder with Template Projects and readme file for how to add them
* Added several Item/Project types. Still need additional data in them but they are a good starting point.

## File Type
* Added .PS1XML to Constant List
* Added reference to new file type in several locations

## Build/Debug
* Set poshtools to startup project
 * Set to Dev12 (was on Dev11)
 * Configured startup to run VS Experimental
* Added new Build config "Clean Build" which is currently not used. A build event should be added to clean the VS Experimental config (still reading up on this, but seems useful)