It didn’t feel like it then, but getting fired was one of the best things to ever happen to Joe Vazquez. Losing his job as an accountant led the Kansas City entrepreneur to found Vazquez Commercial Contracting, one of the city’s fastest-growing construction firms — one that can tackle everything from stormwater projects to demolitions to historical restorations. The Midtown-based company was on pace to end 2018 with about $40…