Removed level converters. Added a linear regulator 1117-3v3.

Keeping it simple. I use a CP2102 board for programming. Adding a programmer is redundant as after development its useless.

I might switch to a switching regulator but not at this stage. I'd get some samples and test out this pcb first.

oh yeah also added a power on led as esp is going to be upside down, it good to know if board powered.