runUnitTest.js: set node binary and options from env var
runUnitTest.js: set node binary and options from env var


Former-commit-id: bd91feb3933de298be7542bc237c43222e0bb9e0
mvertes/skale-engine,skale-me/skale-engine,skale-me/skale-engine,mvertes/skale-engine,mvertes/skale-engine,skale-me/skale-engine