Added Texas instruments TPS61288
Added symbol for the TPS61288 synchronous boost converter from Ti
As with the other switching regulators in kicad libraries, I have put the VCC/VIN pins on the left of the chip. This is also consistent with the component datasheet
Datasheet: https://www.ti.com/lit/ds/symlink/tps61288.pdf Footprint MR: kicad-footprints!3146 (merged)