The Cajun Mardi Gras Festival in Eunice arrives big time on Friday when live entertainment launches on 2nd Street. Admission is free to the five-day event. There will be food trucks, and arts and crafts along South 2nd. The live entertainment will include: On Friday at 7 p.m. Austin Monceaux & Acadian Ramblers will perform and at 10 p.m. Wayne Toups will be on stage. On Saturday, beginning at 10 a…