bump to cmake build instead of makefile#1

pauldreik wants to merge 1 commit intosimdjson:mastersimdjson/simdjson_experiments_vldb2019:masterfrom

pauldreik:pauldreik/update_to_cmakepauldreik/simdjson_experiments_vldb2019:pauldreik/update_to_cmakeCopy head branch name to clipboard