Added the ability to read from CSV files.

The script reads text from a csv file and, for each row, duplicates the
base template.
Added dialog that prompts user to select a file

- Currently supporting CSV and JSON filetypes.
Added function signatures for new functionality.

Stubs made for the following functions include:
- createPage
- readJson
Added JSON Support

- Added JSON Parse method.
- Displaying instruction text based on platform name.