[enh] BMA: Add tx/history/{%pubkey}/pending method

duniterpy/api/bma/tx.py

@@ -211,6 +211,17 @@ async def history(client: Client, pubkey: str) -> dict:
     return await client.get(MODULE + '/history/%s' % pubkey, schema=HISTORY_SCHEMA)
 
 
+async def history_pending(client: Client, pubkey: str) -> dict:
+    """
+    Get pending transactions history of public key
+
+    :param client: Client to connect to the api
+    :param pubkey: Public key
+    :return:
+    """
+    return await client.get(MODULE + '/history/%s/pending' % pubkey, schema=HISTORY_SCHEMA)
+
+
 async def process(client: Client, transaction_signed_raw: str) -> ClientResponse:
     """
     POST a transaction raw document