[EMSUSD-1798] export visibility from abc

**Describe the bug**
export does not read visibility channel

**Steps to reproduce**
Steps to reproduce the behavior:
1. import abc file with a visibility animation
2. usd export selection (or all) and check on visibility in export option
3. create stage from file just created
4. See the visibility does not have animation

**Expected behavior**
Use the visibility abc channel to write the visibility token on usd export, this work good on maya native element, like this:

**Specs (if applicable):**
- Windows 11
- Maya 2024.2
- Maya USD plugin 0.30

thank you