_getTexture = function(render, imagePath) {
            var texture = render.textures[imagePath];
    
            if (!texture)
                texture = render.textures[imagePath] = PIXI.Texture.fromImage(imagePath);
    
            return texture;
        }
Gets the requested texture (a PIXI.Texture) via its path
@method _getTexture
@private
@param {RenderPixi} render
@param {string} imagePath
@return {PIXI.Texture} texture
@deprecated