support for arm64 ubuntu 20.04 ?

[dony71]

I notice there is arm64 lib for ubuntu 16.04
Could it be possible to compile libsnowboy-detect.a for arm64 ubuntu 20.04 ?

[Coinsinical]

it is ok.just edit the makefile.
before：
SNOWBOYDETECTLIBFIE := $(TOPDIR)/lib/ubuntu64/libsnowboy-detect.a
after：
SNOWBOYDETECTLIBFIE := $(TOPDIR)/lib/aarche64-ubuntu1604/libsnowboy-detect.a