Five of India's leading dancers - Ananda Shankar Jayant, Anupama Kylash, Deepika Reddy, Gopika Varma and Vaibhav Arekar across the styles of Bharatanatyam, Kuchipudi and Mohiniattam brought out Saint Annamacharya’s poetic beauty of Lord's ‘vaibhava’, writes G V Anna Rao