CHG: fiddled with the headerfiles... and makefile... Tried to make them behave nice. So it isnt a hell to add new functions from third-party (like des, aes etc)

Added a lot of #ifndef ,   extern C,
Move inside from ARMSRC -> THUMBS,  which made the compiled image smaller.. I don't know if it broke anything.
Moved MF_DBGLEVEL definitions into common.h
Moved print_result from util.c into appmain.c
Also split up some struct typedef  into header files so they could be reused in other code places.

''' danger '''  this might have broken stuff...

armsrc/emvdataels.h

@@ -4,6 +4,8 @@
 
 #include <stdint.h>
 
+typedef struct tagdescription tagdescription;
+
 //Known AIDs
 extern const uint8_t AID_VISA[5];
 extern const uint8_t AID_VISA_DB[7] ;
@@ -25,12 +27,6 @@ extern const uint8_t AID_ALIAS[7];
 
 //Master data file for PSE
 extern const uint8_t DF_PSE[];
-
-typedef struct{
-    uint8_t tag[2];
-    char description[255];
-} tagdescription;
-
 extern const tagdescription EMV_TAG_LIST[62]; //SW1 return values
 extern const uint8_t SW1_RESPONSE_BYTES[]; 
 extern const uint8_t SW1_WRONG_LENGTH[] ;