common: add BNB to support.json (#503)

common/.gitignore

@@ -3,3 +3,4 @@ defs/coins/tools/coindefs.json
 tools/coins.json
 tools/coindefs.json
 tools/coinmarketcap.json
+tools/__pycache__

common/defs/support.json

@@ -77,6 +77,7 @@
       "eth:tRIN": true,
       "eth:tROP": true,
       "misc:ADA": true,
+      "misc:BNB": true,
       "misc:EOS": true,
       "misc:LSK": true,
       "misc:XLM": true,
@@ -2638,7 +2639,7 @@
       "eth:tRIN": "2.0.7",
       "eth:tROP": "2.0.7",
       "misc:ADA": "2.0.8",
-      "misc:BNB": "soon",
+      "misc:BNB": "2.1.5",
       "misc:EOS": "2.1.1",
       "misc:LSK": "2.0.7",
       "misc:MAID": "2.0.10",