Added flipclock js library

Signed-off-by: Shivam Dixit <shivamd001@gmail.com>
Renamed constant

Signed-off-by: Shivam Dixit <shivamd001@gmail.com>
Added comment

Signed-off-by: Shivam Dixit <shivamd001@gmail.com>
Added Show PHP button in workshop mode

Signed-off-by: Shivam Dixit <shivamd001@gmail.com>
Added contest mode template

Signed-off-by: Shivam Dixit <shivamd001@gmail.com>