Merge Beatrice changes to Main net

• Removed build warnings build warnings
• Fixed DEX crash https://gitlab.com/PBSA/peerplays-dex/-/issues/59
• Throttling continuously failing SON proposals to avoid spending of coins for son-accounts #70 (closed)
• Added CLI get_blocks #96 (closed)
• Added DOS mitigation to get_blocks #96 (closed)
• Fixed SON weights calculation for rewards https://gitlab.com/PBSA/peerplays/-/issues/97
• Added CLI wallet version argument #103 (closed)
• Allow SON pegged BTC (pBTC) token to be traded on DEX https://gitlab.com/PBSA/peerplays-dex/-/issues/57
• Reserve token names https://gitlab.com/PBSA/peerplays/-/issues/114
• Change max son count to 7 from 15 at HF #147 (closed)