Added basic stv to bc-example.scm
Added basic stv to bc-example.scm

- for testing Truth Value Query

AmeBel/atomspace,printedheart/atomspace,eddiemonroe/atomspace,yantrabuddhi/atomspace,printedheart/atomspace,misgeatgit/atomspace,misgeatgit/atomspace,yantrabuddhi/atomspace,MarcosPividori/atomspace,rohit12/atomspace,Selameab/atomspace,MarcosPividori/atomspace,williampma/atomspace,rTreutlein/atomspace,inflector/atomspace,inflector/atomspace,virneo/atomspace,virneo/atomspace,jswiergo/atomspace,yantrabuddhi/atomspace,UIKit0/atomspace,eddiemonroe/atomspace,UIKit0/atomspace,Selameab/atomspace,ceefour/atomspace,eddiemonroe/atomspace,rodsol/atomspace,cosmoharrigan/atomspace,williampma/atomspace,AmeBel/atomspace,Selameab/atomspace,UIKit0/atomspace,rodsol/atomspace,rTreutlein/atomspace,ArvinPan/atomspace,AmeBel/atomspace,ArvinPan/atomspace,AmeBel/atomspace,jswiergo/atomspace,ceefour/atomspace,williampma/atomspace,ArvinPan/atomspace,inflector/atomspace,MarcosPividori/atomspace,jswiergo/atomspace,rTreutlein/atomspace,Selameab/atomspace,eddiemonroe/atomspace,rTreutlein/atomspace,misgeatgit/atomspace,ceefour/atomspace,AmeBel/atomspace,printedheart/atomspace,rodsol/atomspace,rohit12/atomspace,misgeatgit/atomspace,williampma/atomspace,UIKit0/atomspace,cosmoharrigan/atomspace,eddiemonroe/atomspace,cosmoharrigan/atomspace,printedheart/atomspace,ArvinPan/atomspace,rohit12/atomspace,yantrabuddhi/atomspace,MarcosPividori/atomspace,rodsol/atomspace,yantrabuddhi/atomspace,virneo/atomspace,rohit12/atomspace,misgeatgit/atomspace,inflector/atomspace,ceefour/atomspace,inflector/atomspace,cosmoharrigan/atomspace,jswiergo/atomspace,virneo/atomspace,rTreutlein/atomspace