Add setter for some FontFaceObject properties

[Aditi-1400]

This fixes #20426 which was caused as a regression of #20197.

From https://bugzilla.mozilla.org/show_bug.cgi?id=1998618#c2:

The pdf contains a font with some characters outside of the range [0x0000-0xFFFF] and when writing the cmap we use the format 4 which is supposed to only handle characters in this range !
For this specific font, a format 8 would have been better:
https://learn.microsoft.com/en-us/typography/opentype/spec/cmap#format-8-mixed-16-bit-and-32-bit-coverage

For now, this makes the properties disableFontFace and bbox mutable as they are later reassgined in https://github.com/mozilla/pdf.js/blob/master/src/core/evaluator.js#L4742 while falling back to browser fonts and in https://github.com/mozilla/pdf.js/blob/master/src/core/evaluator.js#L4830.

[calixteman]

@Aditi-1400 here's a test file:
t1.pdf

[Aditi-1400]

@Aditi-1400 here's a test file: t1.pdf

@calixteman This one's also pretty close to ~10MB 😅

[calixteman]

@Aditi-1400 here's a test file: t1.pdf

@calixteman This one's also pretty close to ~10MB 😅

Oh, sorry I obviously didn't check the size.
Anyway, please make a linked test (i.e. create a file issue20426.pdf.link, copy and paste the link from the gh issue in the file and then add the md5 and then "link": true in test_manifest.json.

[calixteman]

/botio test

[moz-tools-bot]

From: Bot.io (Linux m4)

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Received

Command cmd_test from @calixteman received. Current queue size: 0

Live output at: http://54.241.84.105:8877/7259cb55e9be09e/output.txt

[moz-tools-bot]

From: Bot.io (Windows)

---

Received

Command cmd_test from @calixteman received. Current queue size: 0

Live output at: http://54.193.163.58:8877/0dc2e410e311318/output.txt

[moz-tools-bot]

From: Bot.io (Linux m4)

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Failed

Full output at http://54.241.84.105:8877/7259cb55e9be09e/output.txt

Total script time: 39.77 mins

• Unit tests: Passed
• Integration Tests: Passed
• Regression tests: FAILED

  different ref/snapshot: 1

Image differences available at: http://54.241.84.105:8877/7259cb55e9be09e/reftest-analyzer.html#web=eq.log

[moz-tools-bot]

From: Bot.io (Windows)

---

Failed

Full output at http://54.193.163.58:8877/0dc2e410e311318/output.txt

Total script time: 76.18 mins

• Unit tests: FAILED
• Integration Tests: FAILED
• Regression tests: FAILED

  different ref/snapshot: 1

Image differences available at: http://54.193.163.58:8877/0dc2e410e311318/reftest-analyzer.html#web=eq.log

[calixteman]

/botio-linux test

[moz-tools-bot]

From: Bot.io (Linux m4)

---

Received

Command cmd_test from @calixteman received. Current queue size: 0

Live output at: http://54.241.84.105:8877/a0c10634f00d331/output.txt

[moz-tools-bot]

From: Bot.io (Linux m4)

---

Failed

Full output at http://54.241.84.105:8877/a0c10634f00d331/output.txt

Total script time: 39.48 mins

• Unit tests: Passed
• Integration Tests: Passed
• Regression tests: FAILED

  different ref/snapshot: 1

Image differences available at: http://54.241.84.105:8877/a0c10634f00d331/reftest-analyzer.html#web=eq.log

[calixteman]

LGTM. Thank you.