Ideas for new HW Revision

[domiko96]

• Use Step down instead of Voltage Regulator
  https://www.bastelgarage.ch/s09-3-3v-step-up-down-converter-3-15v-nach-3-3v-600ma
  Works for 5V and 12V strips
• Place 100nF Capacitor correct

[domiko96]

Tracked in PR #33