_resolveFilename && filter arguments

- Added _resolveFilename and improved both getInstance and __construct filename resolving.
- Added additional filter arguments
- Added a packager to create standalone presentations / compressed executable archives (see the readme) https://github.com/johmanx10/coseva/blob/master/README.md#packaging--standalone-csv-parser

Closes #9 
Closes #10 

@johnnyfreeman