Merge pull request #33 from gupta-ankit/datafunctions

Added multifunctions for CSV data injest
Removed Antlr parser from the repo. They will be generated on every build.
Refactored CSV2Table test to work on all systems
Moved average multifunction to package in src
Added first draft of Tableview
Cleaned up  CSV2Table
Added Intersect multifunction
Added TableView multifunction
Finished implemeting table view