Remove PROGMEM temporarily - make registers actually work on AVR

This needs some investigation if it is really possible to push the Registers into PROGMEM. I think it should be possible, but the compiler is currently not collaborating.
It is not critical though as we have lots of free RAM at the moment (I can't believe I wrote this on an AVR project :) )

src/registers.cpp

@@ -88,7 +88,20 @@ struct RegisterRec {
 // compiles to:
 // sts <modules::globals::globals+0x4>, r24
 // ret
-static const RegisterRec registers[] PROGMEM = {
+//
+// @@TODO at the moment we are having problems compiling this array statically into PROGMEM.
+// In this project that's really not an issue since we have half of the RAM empty:
+// Data: 1531 bytes (59.8% Full)
+// But it would be nice to fix that in the future - might be hard to push the compiler to such a construct
+static const RegisterRec registers[] /*PROGMEM*/ = {
+    // 0x00
+    //    RegisterRec([]()->uint16_t { return PROJECT_VERSION_MAJOR; }, 1),
+    //    // 0x01
+    //    RegisterRec([]()->uint16_t { return PROJECT_VERSION_MINOR; }, 1),
+    //    // 0x02
+    //    RegisterRec([]()->uint16_t { return PROJECT_VERSION_REV; }, 2),
+    //    // 0x03
+    //    RegisterRec([]()->uint16_t { return PROJECT_BUILD_NUMBER; }, 2),
     // 0x00
     RegisterRec(false, &project_major),
     // 0x01