FEAT: Add epoch start economics in sov block

data/block/sovereignChainHeader.go

@@ -597,6 +597,40 @@ func (sch *SovereignChainHeader) SetStartOfEpochHeader() error {
 	return nil
 }
 
+// SetDevFeesInEpoch sets the developer fees in the header
+func (sch *SovereignChainHeader) SetDevFeesInEpoch(value *big.Int) error {
+	if sch == nil {
+		return data.ErrNilPointerReceiver
+	}
+	if value == nil {
+		return data.ErrInvalidValue
+	}
+	if sch.DevFeesInEpoch == nil {
+		sch.DevFeesInEpoch = big.NewInt(0)
+	}
+
+	sch.DevFeesInEpoch.Set(value)
+
+	return nil
+}
+
+// SetAccumulatedFeesInEpoch sets the epoch accumulated fees in the header
+func (sch *SovereignChainHeader) SetAccumulatedFeesInEpoch(value *big.Int) error {
+	if sch == nil {
+		return data.ErrNilPointerReceiver
+	}
+	if value == nil {
+		return data.ErrInvalidValue
+	}
+	if sch.AccumulatedFeesInEpoch == nil {
+		sch.AccumulatedFeesInEpoch = big.NewInt(0)
+	}
+
+	sch.AccumulatedFeesInEpoch.Set(value)
+
+	return nil
+}
+
 // SetHash returns the hash
 func (omb *OutGoingMiniBlockHeader) SetHash(hash []byte) error {
 	if omb == nil {