Add new SLE currency

Author: Sija

data/currencies/sle.json

@@ -0,0 +1,12 @@
+{
+  "iso_numeric": 925,
+  "code": "SLE",
+  "name": "New Leone",
+  "symbol": "Le",
+  "subunit": "Cent",
+  "subunit_to_unit": 100,
+  "symbol_first": false,
+  "decimal_mark": ".",
+  "thousands_separator": ",",
+  "smallest_denomination": 1000
+}

data/currencies/sll.json

@@ -3,6 +3,7 @@
   "code": "SLL",
   "name": "Sierra Leonean Leone",
   "symbol": "Le",
+  "disambiguate_symbol": "SLL",
   "subunit": "Cent",
   "subunit_to_unit": 100,
   "symbol_first": false,