Fix imports in `vo/samp/__init__.py`
Fix imports in `vo/samp/__init__.py`

saimn/astropy,stargaser/astropy,StuartLittlefair/astropy,larrybradley/astropy,saimn/astropy,tbabej/astropy,pllim/astropy,StuartLittlefair/astropy,funbaker/astropy,kelle/astropy,dhomeier/astropy,saimn/astropy,kelle/astropy,StuartLittlefair/astropy,MSeifert04/astropy,saimn/astropy,funbaker/astropy,pllim/astropy,StuartLittlefair/astropy,AustereCuriosity/astropy,DougBurke/astropy,lpsinger/astropy,saimn/astropy,lpsinger/astropy,dhomeier/astropy,larrybradley/astropy,DougBurke/astropy,joergdietrich/astropy,MSeifert04/astropy,mhvk/astropy,aleksandr-bakanov/astropy,dhomeier/astropy,stargaser/astropy,aleksandr-bakanov/astropy,tbabej/astropy,aleksandr-bakanov/astropy,StuartLittlefair/astropy,pllim/astropy,larrybradley/astropy,AustereCuriosity/astropy,lpsinger/astropy,DougBurke/astropy,mhvk/astropy,dhomeier/astropy,funbaker/astropy,mhvk/astropy,tbabej/astropy,lpsinger/astropy,joergdietrich/astropy,astropy/astropy,kelle/astropy,stargaser/astropy,pllim/astropy,tbabej/astropy,bsipocz/astropy,tbabej/astropy,MSeifert04/astropy,lpsinger/astropy,AustereCuriosity/astropy,bsipocz/astropy,mhvk/astropy,astropy/astropy,pllim/astropy,mhvk/astropy,DougBurke/astropy,AustereCuriosity/astropy,dhomeier/astropy,kelle/astropy,astropy/astropy,larrybradley/astropy,joergdietrich/astropy,aleksandr-bakanov/astropy,astropy/astropy,astropy/astropy,bsipocz/astropy,larrybradley/astropy,joergdietrich/astropy,MSeifert04/astropy,AustereCuriosity/astropy,kelle/astropy,stargaser/astropy,joergdietrich/astropy,bsipocz/astropy,funbaker/astropy