Added checking process if user has filled the pre-quesioner before or not
Set 'y' & 't' category & escape string before saving it to MySQL
Seperate saving function for YT quesioner category
Set comment to null if user chooses Yes
Added YT category for query of generate result
Redirect user to pre_voting page first before going to online_voting page
Checked if user has filled pre quesioner first before voting
Seperate table result of Pra Voting
Added menu of candiate management & voting result
Added controller for pre-voting
Added view of pre voting form