Big update !

v2.1.1.5
Changes:
- Add smart switch, 4 modes (see "Config Examples" folder for starting points)
  1. Profit: Will mine the most profitable crypto in USD
  2. Reward: Will mine the crypto that earn the more coins
  3. Difficulty: Will mine the crypto with the smallest difficulty
  4. TimeToBlock: Will switch to the crypto with the fastest solo time to block estimation
- Add pool extranonce subscription
- Add Nicehash stratum protocol support
- Add Protocol option in config (Ethproxy, Stratum, Nicehash), default is stratum
- Send set.extranonce to workers on pool switch
- Add ForceWorkersReconnect option in config (If you want to switch between pools but that your mining software doesn't support set.extranonce method)
- Add stale shares catcher
- Add StaleSharesWindow option in config (To tweak how much shares should be kept in memory)
- Add no response shares cleaner
- Add coins: BTCZ, CLO, EXP, HUSH, KMD, QKC, UBQ, YEC, ZCL, ZER
- Bug fixes

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As always, please let me know if you encounter any issue(s) or if you need any help !