isaac / Music Player - History

Added a few more missing signals

Time spent: 15 minutes

Added LT3093 and LT3045 symbols

Placed symbols on new analog_power.sch sheet

Copied a a few rescued symbols to Music Player.sch

TODO: Clean up libraries, clean up symobls, asign footprints
for LDOs (and more)

Time Spent: 30 mins

Reserved more pins, and migrated to new KiCAD version

Time spent: 30 minutes

Moved DAC components to sub-sheet

Also:
- added some decoupling caps
- Researched differential outputs

Time spent: 20 minutes

Wired up more components:

- SWD
- TRACE
- Audio output
- Part of SD Card

Reserved more pins on the STM32 (LCD, FMC), so GPIO won't conflict in
the future.

Time spent: 25 mins