Tests/LibGfx: Add a JBIG2 file in random access organization

Author: nico

Tests/LibGfx/TestImageDecoder.cpp

@@ -334,6 +334,7 @@ TEST_CASE(test_jbig2_decode)
 
     Array test_inputs = {
         TEST_INPUT("jbig2/bitmap.jbig2"sv),
+        TEST_INPUT("jbig2/bitmap-randomaccess.jbig2"sv),
         TEST_INPUT("jbig2/bitmap-p32-eof.jbig2"sv),
         TEST_INPUT("jbig2/bitmap-initially-unknown-size.jbig2"sv),
         TEST_INPUT("jbig2/bitmap-composite-and-xnor.jbig2"sv),

Tests/LibGfx/test-inputs/jbig2/bitmap-randomaccess.jbig2

@@ -0,0 +1,40 @@
+{
+    "global_header": {
+        "organization": "random_access",
+        "number_of_pages": 1
+    },
+    "segments": [
+        {
+            "segment_number": 0,
+            "type": "page_information",
+            "page_association": 1,
+            "data": {
+                "page_width": 399,
+                "page_height": 400,
+                "flags": {
+                    "is_eventually_lossless": true
+                }
+            }
+        },
+        {
+            "segment_number": 1,
+            "type": "lossless_generic_region",
+            "page_association": 1,
+            "data": {
+                "image_data": {
+                    "from_file": "bitmap.bmp"
+                }
+            }
+        },
+        {
+            "segment_number": 2,
+            "type": "end_of_page",
+            "page_association": 1
+        },
+        {
+            "segment_number": 3,
+            "type": "end_of_file",
+            "page_association": 0
+        }
+    ]
+}