Fix Go bindings after Blob ctor changes
Fix Go bindings after Blob ctor changes

rbevers/lucy,rectang/lucy,rectang/lucy,rectang/lucy,nwellnhof/lucy,rbevers/lucy,apache/lucy,apache/lucy,rectang/lucy,rbevers/lucy,nwellnhof/lucy,apache/lucy,apache/lucy,nwellnhof/lucy,apache/lucy,apache/lucy,rectang/lucy,rectang/lucy,rbevers/lucy,nwellnhof/lucy,nwellnhof/lucy,apache/lucy,rbevers/lucy,nwellnhof/lucy,rectang/lucy,nwellnhof/lucy,rbevers/lucy,rbevers/lucy