Add support for FIRO (FIROPOW)

[blackmennewstyle]

Commit 65fe338 officially adds support for Firo (FiroPow) 🔥 🚀

In order to work properly the following procedure details how to setup a FIRO node for pool mining.

How to configure firod config file?

(TESTNET)

# String to be appended to firo.conf:
# rpcauth=<pool_address>:<token>
# Your password:
# <super_duper_password>
rpcauth=<pool_address>:<token>
miningaddress=<pool_address>
uacomment=<pool_address>
zmqpubhashblock=tcp://127.0.0.1:18889
#daemon=1
maxmempool=150
par=1
listen=1
maxconnections=25
server=1
rpcbind=127.0.0.1
rpcallowip=192.168.0.0/24
rpcport=18888
port=18168
rpcthreads=1
debug=1

Replace respectively:
<pool_address>:<token>, see the FIRO github repository in order to know how to generate the rpcauth
<pool_address> with a valid FIRO address owned by the wallet.dat

(MAINNET)

# String to be appended to firo.conf:
# rpcauth=<pool_address>:<token>
# Your password:
# <super_duper_password>
rpcauth=<pool_address>:<token>
miningaddress=<pool_address>
uacomment=<pool_address>
zmqpubhashblock=tcp://127.0.0.1:8889
daemon=1
maxmempool=150
par=1
listen=1
maxconnections=25
server=1
rpcbind=127.0.0.1
rpcallowip=192.168.0.0/24
rpcport=8888
port=8168
rpcthreads=1

Replace respectively:
<pool_address>:<token>, see the FIRO github repository in order to know how to generate the rpcauth
<pool_address> with a valid FIRO address owned by the wallet.dat

How to configure confg.json for FIRO?

A pool configuration for FIRO be found inside the examples folder: https://github.com/blackmennewstyle/miningcore/blob/dev/examples/firo_pool.json

Replace all the specific options with the correct expected values.
ZmqBlockNotifySocket must be the same as zmqpubhashblock= in the firod config file.

[blackmennewstyle]

Commit cd3f102 fixes the annoying cache corruption issue for PROGPOW and ETHEREUM: https://github.com/xiaolin1579/miningcore/issues/37#issue-2063246578