Imagine for a moment if you will that you are homeless … you’ve lost most everything you had in life … except your dog.  The only one who still loves you, who faithfully stays by your side through thick and thin, doesn’t care if you haven’t had a shower in days, or if you’ve got that same ugly grey sweatshirt on for the third day in a row.  He cuddles by your side at night, gives you a g’night lick on the cheek, and his is the first face you see when you wake in your makeshift tent on the sidewalk, or under the overpass.  Your best friend … maybe your only friend.Meet Dr. Kwane Stewart, DVM.  Nine years ago, Stewart, wanting to show his young son the importance of giving back, spent an afternoon at a soup kitchen offering medical care to the pets of homeless people in…