test: vips determine image types test

* test: vips determine image types test

* test: vips determine image types test

* test: update golden files

testdata/golden/meta/gopher-front.heif

@@ -0,0 +1 @@
+{"format":"heif","content_type":"image/heif","width":202,"height":259,"orientation":0,"pages":1,"bands":4,"exif":{"ColorSpace":65535,"ComponentsConfiguration":"Y Cb Cr -","ExifVersion":"Exif Version 2.1","PixelXDimension":202,"PixelYDimension":259,"ResolutionUnit":2,"XResolution":"72009/1000","YCbCrPositioning":1,"YResolution":"72009/1000"}}

testdata/golden/meta/gopher.jp2

@@ -0,0 +1 @@
+{"format":"jp2k","content_type":"image/jp2","width":147,"height":200,"orientation":0,"pages":1,"bands":4,"exif":{}}

testdata/golden/meta/gopher.tiff

@@ -0,0 +1 @@
+{"format":"tiff","content_type":"image/tiff","width":200,"height":100,"orientation":1,"pages":1,"bands":4,"exif":{}}

vips/processor_test.go

@@ -65,7 +65,11 @@ func TestProcessor(t *testing.T) {
 		doGoldenTests(t, resultDir, []test{
 			{name: "meta jpeg", path: "meta/fit-in/100x100/demo1.jpg"},
 			{name: "meta gif", path: "meta/fit-in/100x100/dancing-banana.gif"},
-			{name: "meta svg", path: "meta/test.svg"},
+			{name: "base meta svg", path: "meta/test.svg"},
+			{name: "base meta jp2", path: "meta/gopher.jp2"},
+			{name: "base meta pdf", path: "meta/sample.pdf"},
+			{name: "base meta heif", path: "meta/gopher-front.heif"},
+			{name: "base meta tiff", path: "meta/gopher.tiff"},
 			{name: "meta format no animate", path: "meta/fit-in/100x100/filters:format(jpg)/dancing-banana.gif"},
 			{name: "meta exif", path: "meta/Canon_40D.jpg"},
 			{name: "meta strip exif", path: "meta/filters:strip_exif()/Canon_40D.jpg"},