I26 omni

[aaronr8684]

This PR accomplishes:

• Abstract waveshare specific code (to support Inky, etc.)
• Combine non-HD and HD logic
• Add Omni-EPD dependency
• Remove Waveshare Library dependency

Possible issues:

• Mode should refer to screen mode (bw, red, yellow, color, grey) instead of image mode (P, L, 1, etc.)

Still needed:

• Readme needs to be updated to reflect the changes
• Docstrings also need a quick look through as I'm sure I missed some items.
• Testing outside of my devices

This should get EPDLib to a good starting point for bw support across all waveshare and inky screens via Omni. Color and grey support to follow.

[aaronr8684]

This appears to work out of the box with PaperPi v0.3

19:03:04 Screen  :_loadEPD  :373 :DEBUG      - configuring omni_edp.waveshare_epd.epd7in5b_V2
480
19:03:04 Screen  :epd       :312 :DEBUG      - epd configuration waveshare_epd.epd7in5b_V2
19:03:04 Screen  :rotation  :359 :DEBUG      - rotation=0, resolution=[800, 480]
19:03:04 Screen  :wrapper   :247 :DEBUG      - initing display
19:03:05 epd7in5b_V2:ReadBusy  :77  :DEBUG      - e-Paper busy

It just required a change in the ini file to prepend waveshare_epd. to Display Type and to pip install ArgConfigParse. I also manually installed epdlib from the branch.

Wasn't expecting it to just work 🤷‍♂️