avr: more work on gui2

- decreased complexitiy by removing guicntl
- changed fonts to allow for storing bitmaps in ressource segment
- add fonts to ressources for display node c03
- added some safety features (check pointers, add magic field to objects etc)
- moved style.asm to device folder

avr/devices/c03/main/ressources.inc

@@ -21,6 +21,9 @@
 .equ RESSSOURCE_IMG_CLOUD96    =  7
 .equ RESSSOURCE_IMG_TEMP96     =  8
 .equ RESSSOURCE_IMG_HUMIDITY96 =  9
+.equ RESSSOURCE_FNT_12X16_1    = 10
+.equ RESSSOURCE_FNT_12X20_1    = 11
+.equ RESSSOURCE_FNT_6X8_1      = 12
 
 
 #endif ; AQH_AVR_DEVICE_C03_RESSOURCES_INC