ENH: Update can_trade to check exchange time

BarData now takes the trading calendar as a parameter.

can_trade now checks if the asset’s exchange is open at the current or
next market minute (defined by the given trading calendar).

tests/test_api_shim.py

@@ -188,7 +188,9 @@ class TestAPIShim(WithDataPortal, WithSimParams, ZiplineTestCase):
         )[-1]
         bar_data = BarData(
             self.data_portal,
-            lambda: test_end_minute, "minute"
+            lambda: test_end_minute,
+            "minute",
+            self.trading_calendar
         )
         ohlcvp_fields = [
             "open",