Show hashrate estimate in status

src/block_template.h

@@ -54,6 +54,7 @@ public:
 
 	void submit_sidechain_block(uint32_t template_id, uint32_t nonce, uint32_t extra_nonce);
 
+	FORCEINLINE uint64_t final_reward() const { return m_finalReward; }
 	FORCEINLINE uint64_t next_payout() const { return m_nextPayout; }
 
 private:
@@ -95,6 +96,7 @@ private:
 
 	BlockTemplate* m_oldTemplates[4] = {};
 
+	uint64_t m_finalReward;
 	uint64_t m_nextPayout;
 
 	// Temp vectors, will be cleaned up after use and skipped in copy constructor/assignment operators