EPPING, New Hampshire — It’s the color of royalty, richness, grapes and wine. And in Epping, it’s the color of controversy. The lilac Victorian house on the corner of Main and Academy streets is raising eyebrows and chuckles. The home of Creative Community Space, an art studio and art education facility, it is fulfilling founder Vandy Leigh’s vision. Leigh was open about her plans to paint the house purple, as far back as the Planning Board stage. “She asked for the color when the Planning Board approved the site plan, and we said, ‘Go for it,’” board Chairman Joe Foley recalled.