Add animation compression:draco-animation.

[owilliamailliwo]

Implemented glTF extension "Draco_animation_compression" for animation compression.
Changed the command line options for draco.
"-d/--draco mesh" for enable mesh compression.
"-d/--draco animation" for enable animation compression.
The document will be update later.

If anyone has any questions feel free to email me: [email protected].

[zellski]

This is great, thank you! Will read through the code later today.

Offhand I'd say we might want to quietly preserve the old --draco behaviour, for the sake of not breaking existing pipelines, but make the documented options --draco-mesh and --draco-animation. But I'll have more to say later.

[zellski]

... and I really have to fix the Travis build ...

[owilliamailliwo]

This is great, thank you! Will read through the code later today.

Offhand I'd say we might want to quietly preserve the old --draco behaviour, for the sake of not breaking existing pipelines, but make the documented options --draco-mesh and --draco-animation. But I'll have more to say later.

I think what you say is reasonable. Let me know if you have any suggestions.
I will modify it according to your suggestions.

BTW,please let me know when the Travis build is ok.

[owilliamailliwo]

This is great, thank you! Will read through the code later today.

Offhand I'd say we might want to quietly preserve the old --draco behaviour, for the sake of not breaking existing pipelines, but make the documented options --draco-mesh and --draco-animation. But I'll have more to say later.

Hi, do you have any suggestions?

[zellski]

I’m sorry for my absence. I’m the only maintainer and sometimes my other obligations must take priority. I will try to take a look soon.