Release v1.0.6

What's Changed

• build multiple interp thread safe
• qexp( ixgo export ) support types alias

-alias
    	export types alias data
-alias_types string
    	set export types alias list, split by ;
-types
    	export types data for XGo

• xgobuild: context.LoadPackages by @visualfc in #434
• embed func use by global map by @visualfc in #435
• thread safe by @visualfc in #436
• update interp.UnsafeRelease by @visualfc in #438
• xgo v1.7.1 by @visualfc in #439
• update xgo version by @visualfc in #440
• xgobuild: support import types data from qexp -types by @visualfc in #441
• export package support alias metadata by @visualfc in #442
• alias: types.pointer by @visualfc in #443
• alias: fix alias load check by @visualfc in #444
• qexp: flag -alias_types set export types alias list by @visualfc in #445

Full Changelog: v1.0.5...v1.0.6