Get ready to meet your new best TV friends: "Best Friends Forever" (premieres Wed., Apr. 4, 8:30 p.m. ET on NBC) is the kind of show you're gonna want to hang out with every week. Just trust me. Written, created by and starring funny ladies (and real-life friends) Jessica St. Clair and Lennon Parham, "Best Friends Forever" is a sweet, funny, so-true-it-doesn't-feel-like-a-sitcom kind of sitcom. I visited the set and instantly fell in love with the whole vibe, but watching these two women work together...