Improved Arabic/RTL support

[Meorge]

Implements issue #92.

• When the dialogue box renders its text as RTL, the nameplate moves to the right side of the screen, and the "next dialogue" arrow moves to the left side of the screen.
• The preferred font for Arabic text is changed to Kawkab Mono, which may be more readable. The previous font still remains as a fallback option.
  • For some reason, as you can see in the video below Kawkab Mono performs its line breaks much sooner than the old font, causing text to only take up about half of the box... No modifications were made to the line-breaking code so I'm not sure why that would be. If this is an issue, we could revert the font change until we're able to implement a fix.

https://user-images.githubusercontent.com/9957987/200884824-132dc7f5-e993-4b20-a1e4-d9d81d27a947.mp4

NOTE: With these changes, the user will need to have the KawkabMono-Regular.ttf file from the font's website in the assets/igiari folder.

[LuisMayo]

Hi!

This seems impressive already. I can't read Arabic text so I'm not sure, but if you say the new font is more readable I'll take your word for it. About the line breaking problem I'm going to spawn an issue for that. But that shouldn't stop this PR to get merged. Readability is more important than line breaking

Furthermore, bad line breaking has been an issue for a long time now, it also happens in english #55

As always I'll do a few tests and merge this accordingly. Again thanks for your work

[Meorge]

Because this pull request involved the animated arrow, I decided to go ahead and GIF-ify it. The GIF is below, and should be placed at assets/arrow.gif:

Here is how it looks with the RTL test:

https://user-images.githubusercontent.com/9957987/201261268-14c41f7f-4e8a-4cc9-8d8b-ef88e3e04a2e.mp4

As such, this pull request should take care of #92 and #94 ! 😄

[LuisMayo]

Hi! With your permission I've added some code to ensure updating the engine will be transparent for users without them having to manually remove the assets folder.

That being said. I'm having trouble running example.py

Traceback (most recent call last):
  File "C:\Users\luis.mayo\Documents\GitHub\objection_engine\examples\example.py", line 24, in <module>
    render_comment_list(comments, f'output-{str(int(time()))}.mp4')
  File "C:\Users\luis.mayo\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.10_qbz5n2kfra8p0\LocalCache\local-packages\Python310\site-packages\objection_engine\renderer.py", line 62, in render_comment_list
    return anim.comments_to_scene(thread, name_music = music_code, output_filename=output_filename, resolution_scale=resolution_scale)
  File "C:\Users\luis.mayo\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.10_qbz5n2kfra8p0\LocalCache\local-packages\Python310\site-packages\objection_engine\anim.py", line 587, in comments_to_scene
    ace_attorney_anim(formatted_scenes, **kwargs)
  File "C:\Users\luis.mayo\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.10_qbz5n2kfra8p0\LocalCache\local-packages\Python310\site-packages\objection_engine\anim.py", line 442, in ace_attorney_anim
    sound_effects = do_video(config, root_filename, resolution_scale)
  File "C:\Users\luis.mayo\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.10_qbz5n2kfra8p0\LocalCache\local-packages\Python310\site-packages\objection_engine\anim.py", line 117, in do_video
    if obj["text"].use_rtl():
KeyError: 'text'

Can you confirm if it works fine in your machine? I'm currently on a new laptop may installation may be off.

Thanks for your work!

[Meorge]

When running the standard example, I got the same error. I must've only been testing it on the RTL test where there were no Objection bubbles, whoops 😅 Anyways, I added a quick check to fix that! I also moved the location of the print statement in your code so that it only runs if the file is not found. Being able to download individual assets from the server instead of just one zip file is a great idea!

[LuisMayo]

I push a 10 lines code and one is not in its place 🤦‍♂️

Anyway, this is good to go now. Thanks again for a well-done job!