Add JPEG 2000 MIME type constants (#17)

* Initial plan

* Add JPEG 2000 MIME types: image/jp2, image/jpm, image/jpx, video/mj2

Co-authored-by: markwhitaker <446635+markwhitaker@users.noreply.github.com>

---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: markwhitaker <446635+markwhitaker@users.noreply.github.com>

Author: Copilot

src/mime-types.js

@@ -90,7 +90,10 @@ const MimeTypes = Object.freeze({
         Avif: prefix + "avif",
         Bmp: prefix + "bmp",
         Gif: prefix + "gif",
+        Jp2: prefix + "jp2",
         Jpeg: prefix + "jpeg",
+        Jpm: prefix + "jpm",
+        Jpx: prefix + "jpx",
         Png: prefix + "png",
         SvgXml: prefix + "svg+xml",
         Tiff: prefix + "tiff",
@@ -120,6 +123,7 @@ const MimeTypes = Object.freeze({
 
     Video: (prefix => Object.freeze({
         H264: prefix + "h264",
+        Mj2: prefix + "mj2",
         Mp2t: prefix + "mp2t",
         Mp4: prefix + "mp4",
         Mpeg: prefix + "mpeg",

test/mime-types.test.js

@@ -94,7 +94,10 @@ describe("MimeTypes.Image", () => {
     test("image/avif", () => expect(MimeTypes.Image.Avif).toBe("image/avif"));
     test("image/bmp", () => expect(MimeTypes.Image.Bmp).toBe("image/bmp"));
     test("image/gif", () => expect(MimeTypes.Image.Gif).toBe("image/gif"));
+    test("image/jp2", () => expect(MimeTypes.Image.Jp2).toBe("image/jp2"));
     test("image/jpeg", () => expect(MimeTypes.Image.Jpeg).toBe("image/jpeg"));
+    test("image/jpm", () => expect(MimeTypes.Image.Jpm).toBe("image/jpm"));
+    test("image/jpx", () => expect(MimeTypes.Image.Jpx).toBe("image/jpx"));
     test("image/png", () => expect(MimeTypes.Image.Png).toBe("image/png"));
     test("image/svg+xml", () => expect(MimeTypes.Image.SvgXml).toBe("image/svg+xml"));
     test("image/tiff", () => expect(MimeTypes.Image.Tiff).toBe("image/tiff"));
@@ -124,6 +127,7 @@ describe("MimeTypes.Text", () => {
 
 describe("MimeTypes.Video", () => {
     test("video/h264", () => expect(MimeTypes.Video.H264).toBe("video/h264"));
+    test("video/mj2", () => expect(MimeTypes.Video.Mj2).toBe("video/mj2"));
     test("video/mp2t", () => expect(MimeTypes.Video.Mp2t).toBe("video/mp2t"));
     test("video/mp4", () => expect(MimeTypes.Video.Mp4).toBe("video/mp4"));
     test("video/mpeg", () => expect(MimeTypes.Video.Mpeg).toBe("video/mpeg"));