Add Swap feature

src/swap_lib_calls.h

@@ -0,0 +1,52 @@
+#ifndef SWAP_LIB_CALLS
+#define SWAP_LIB_CALLS
+
+#include "stdbool.h"
+
+#define RUN_APPLICATION 1
+
+#define SIGN_TRANSACTION 2
+
+#define CHECK_ADDRESS 3
+
+#define GET_PRINTABLE_AMOUNT 4
+
+// structure that should be send to specific coin application to get address
+typedef struct check_address_parameters_s {
+    // IN
+    unsigned char* coin_configuration;
+    unsigned char coin_configuration_length;
+    // serialized path, segwit, version prefix, hash used, dictionary etc. 
+    // fields and serialization format depends on spesific coin app
+    unsigned char* address_parameters; 
+    unsigned char address_parameters_length;
+    char *address_to_check;
+    char *extra_id_to_check;
+    // OUT
+    int result;
+} check_address_parameters_t;
+
+// structure that should be send to specific coin application to get printable amount
+typedef struct get_printable_amount_parameters_s {
+    // IN
+    unsigned char* coin_configuration;
+    unsigned char coin_configuration_length;
+    unsigned char* amount; 
+    unsigned char amount_length;
+    bool is_fee;
+    // OUT
+    char printable_amount[30];
+} get_printable_amount_parameters_t;
+
+typedef struct create_transaction_parameters_s {
+    unsigned char* coin_configuration;
+    unsigned char coin_configuration_length;
+    unsigned char* amount; 
+    unsigned char amount_length;
+    unsigned char* fee_amount; 
+    unsigned char fee_amount_length;
+    char *destination_address;
+    char *destination_address_extra_id;
+} create_transaction_parameters_t;
+
+#endif