Port Android APEX timezone location lookup from mono/mono

[akoeplinger]

We need to port mono/mono#20349 and verify it works.

[akoeplinger]

It also looks like Android will remove the zone.tab file aosp-mirror/platform_bionic@2b76a94

So we likely can't use the existing TimeZoneInfo.Unix.cs as is and need to port the https://github.com/mono/mono/blob/master/mcs/class/corlib/System/TimeZoneInfo.Android.cs