WIP: unify the RAK targets into one firmware (#1350)

* First steps to unify GPS Lib for RAK 1910 and RAK 12500

* Technicalities. Out with the old and build the new.

* Adapt Matrix

* We use 0.4.5 now

* While we're at it, yank the RAK815, it's EOL

* Satisfy CI - for now

* - yank UBX library, talk to GPS chip with NMEA only.
- more autodetect going on, this time for the Eink Display.

TODO: actually do something with the scan findings.

* i swear this works on windows! :-)

* these are only there to make CI happy

* don't update eink display if not detected.

* Replace Oberon Crypt Library with modified Adafruit Library. This elimintaes the need for the sdk-nfxlib submodule.

* - Revert auto screen selection (incomplete)
- Revert nrF crypto engine (needs more work)
- add separate defines for not-auto-selecting screen lib.

* Define 2 new variants for RAK - with or without epaper

* Update variants

Co-authored-by: Sacha Weatherstone <sachaw100@hotmail.com>
Co-authored-by: Ben Meadors <thebentern@tuta.io>

src/graphics/Screen.h

@@ -27,6 +27,10 @@ class Screen
 
 #ifdef USE_ST7567
 #include <ST7567Wire.h>
+#elif defined(USE_SH1106)
+#include <SH1106Wire.h>
+#elif defined(USE_SSD1306)
+#include <SSD1306Wire.h>
 #else
 // the SH1106/SSD1306 variant is auto-detected
 #include <AutoOLEDWire.h>
@@ -297,9 +301,16 @@ class Screen : public concurrency::OSThread
     /// Holds state for debug information
     DebugInfo debugInfo;
 
-   /// Display device
-    /** FIXME cleanup display abstraction */
-#ifdef ST7735_CS
+    /// Display device
+
+// #ifdef RAK4630
+//     EInkDisplay dispdev;
+//     AutoOLEDWire dispdev_oled;
+#ifdef USE_SH1106
+    SH1106Wire dispdev;
+#elif defined(USE_SSD1306)
+    SSD1306Wire dispdev;
+#elif defined(ST7735_CS)
     TFTDisplay dispdev;
 #elif defined(HAS_EINK)
     EInkDisplay dispdev;