defs: check that backend URIs use https

defs/bitcoin/pesetacoin.json

@@ -33,7 +33,7 @@
   "min_address_length": 27,
   "max_address_length": 34,
   "bitcore": [
-    "http://live.pesetacoin.info"
+    "https://live.pesetacoin.info"
   ],
   "blockbook": [],
   "cooldown": 100

tools/coin_info.py

@@ -177,6 +177,9 @@ def validate_btc(coin):
         errors.append("max address length must not be smaller than min address length")
 
     for bc in coin["bitcore"] + coin["blockbook"]:
+        if not bc.startswith("https://"):
+            errors.append("make sure URLs start with https://")
+
         if bc.endswith("/"):
             errors.append("make sure URLs don't end with '/'")