Add .swiftformat file (#12)

.swiftformat

@@ -0,0 +1,14 @@
+# Formatting Options - Mimic Google style
+--indent 2
+--maxwidth 100
+--wrapparameters afterfirst
+
+# Disabled Rules
+
+# Too many of our swift files have simplistic examples. While technically
+# it's correct to remove the unused argument labels, it makes our examples
+# look wrong.
+--disable unusedArguments
+
+# We prefer trailing braces.
+--disable wrapMultilineStatementBraces

Mintfile

@@ -1 +1 @@
-nicklockwood/SwiftFormat@0.51.12
+nicklockwood/SwiftFormat@0.54.0