final adjustments for power constraints with changed footprint and resistor values on notch filter feedback portion

renamed and relinked footprints with better clarity footprint file names

updated GND symbols for appropriate seperatiion of analog and digital grounds

Merge pull request #14 from ThaneGallo/Reference-Designator-Update Reference Designator and Footprint Updates

Reference Designator and Footprint Updates Changed almost all reference designators to group similar components by what filter they are a part of and what value they have. Need to: - Sort symbol data for ADC and OpAmps to correct folders - get footprint files for ADC and OpAmps

Merge pull request #13 from ThaneGallo/JC-connectors-edit added connectors for electrode inputs and revamped battery connectors

added audio jack connectors for emg connections

removed sda scl pullups, removed electrode connectors to make space for proper connectors later

added connectors for electrode inputs and revamped battery connectors

Merge pull request #12 from ThaneGallo/Input-Power-and-Output-Connector-changes Filter abstraction and Input output connectors