Mod: Added flaggy to vendor directory

Signed-off-by: Glenn Vriesman <glenn.vriesman@gmail.com>

vendor/github.com/integrii/flaggy/positionalValue.go

@@ -0,0 +1,14 @@
+package flaggy
+
+// PositionalValue represents a value which is determined by its position
+// relative to where a subcommand was detected.
+type PositionalValue struct {
+	Name          string // used in documentation only
+	Description   string
+	AssignmentVar *string // the var that will get this variable
+	Position      int     // the position, not including switches, of this variable
+	Required      bool    // this subcommand must always be specified
+	Found         bool    // was this positional found during parsing?
+	Hidden        bool    // indicates this positional value should be hidden from help
+	defaultValue  string  // used for help output
+}