InnerTxn does not have 'foreignAssets' field

[huybuidac]

Describe the bug

InnerTxn does not have 'foreignAssets' field

Expected Behavior

Can add 'foreignAssets'

Current Behavior

Possible Solution

Steps to Reproduce

1. Create InnerTxn call another app with foreignAssets

Environment

• OS: [e.g. iOS]
• Node.js version:
• algob version:

[justinooi]

Could really use this feature. Would love to help create a PR but have no idea where to start. Any advice?

@robert-zaremba