Copy the audio payload to the new datapack in data augment

**Is your feature request related to a problem? Please describe.**
In data augmentation module, a new datapack is created after text replacement operations, but it only includes [the updated text](https://github.com/asyml/forte/blob/d3083beca858d7f254090c3e3185f78f2dfed110/forte/processors/data_augment/base_data_augment_processor.py#L450) and does not take the audio payload into account. We want the new datapack to keep the audio info from the previous datapack.

**Describe the solution you'd like**
Copy the audio field to the new datapack in data augmentation module. For example, we can add something like:
```python
new_pack.set_audio(input_pack.audio, input_pack.sample_rate)
```
after [this line](https://github.com/asyml/forte/blob/d3083beca858d7f254090c3e3185f78f2dfed110/forte/processors/data_augment/base_data_augment_processor.py#L776).

Start in forte/processors/data_augment/base_data_augment_processor.py at the referenced new datapack creation and text replacement code, then inspect the datapack audio API. Verify that augmented datapacks retain the input audio and sample rate, and run the relevant data augmentation tests if available.

Written by the indexing model from the issue text.