Add enum for supported formats

pauper_metagame_analysis/mtggoldfish.py

@@ -0,0 +1,18 @@
+#!/usr/bin/python3
+
+from enum import Enum
+
+class Format(Enum):
+    STANDARD       = "standard"
+    MODERN         = "modern"
+    PIONEER        = "pioneer"
+    HISTORIC       = "historic"
+    EXPLORER       = "explorer"
+    TIMELESS       = "timeless"
+    ALCHEMY        = "alchemy"
+    PAUPER         = "pauper"
+    LEGACY         = "legacy"
+    VINTAGE        = "vintage"
+    PENNY_DREADFUL = "penny_dreadful"
+    COMMANDER_1V1  = "commander_1v1"
+    COMMANDER      = "commander"