Gumshoe Trail of Cthulhu: v0.1.0

Fully featured Trail of Cthulhu spreadsheet, based off reusable components that other GUMSHOE system games can use. Includes custom API script for rolling point spends.

@rileydutton Removed all the extraneous development files and Roll20 proprietary assets as well.

The more complicated development setup was to facilitate easy development of other Gumshoe games sheets which will share quite a bit of code.