Refactor FeeVote into IFeeVote abstract interface

src/cpp/ripple/ripple_IFeatures.h

@@ -0,0 +1,21 @@
+#ifndef RIPPLE_IFEATURES_H
+#define RIPPLE_IFEATURES_H
+
+/** Feature table interface.
+
+	The feature table stores the list of enabled and potential features.
+	Individuals features are voted on by validators during the consensus
+	process.
+*/
+class IFeatureTable
+{
+public:
+	static IFeatureTable* New (uint32 majorityTime, int majorityFraction);
+
+	virtual ~IFeatureTable () { }
+
+	virtual void doValidation (Ledger::ref lastClosedLedger, STObject& baseValidation) = 0;
+	virtual void doVoting (Ledger::ref lastClosedLedger, SHAMap::ref initialPosition) = 0;
+};
+
+#endif