Multicore run

[zychappy]

I found when bts is running only with one core,
it is more efficient to run with multicore

[oxarbitrage]

#1489 is merged to develop and testnet.

Try one of those branches for multicore with:

git checkout -t origin/develop and build.

The feature will go into master in the next release. Let us know how do you see it if you test it out.

[zychappy]

OK，I will try, thank you very much!