Move Lisk-specific transaction types to application-level - Closes #2780

[lsilvs]

What was the problem?

Lisk Core was using its specific transaction types from Lisk Elements and it should be defined in the application level.

How did I fix it?

I've copied Dapp Transaction, InTransfer Transaction and OutTransfer Transaction into Lisk Core and removed InTransfer/OutTransfer from elements/lisk-transactions/src/index.ts

DappTransaction is still exposed to keep compatibility in Lisk Elements.
InTransfer/OutTransfer implementation was not removed from Lisk Elements because it's used in elements/lisk-transactions/src/utils/get_transaction_bytes.ts

How to test it?

Run test suite

Review checklist

• The PR resolves Move Lisk-specific transaction types to application-level #2780
• All new code is covered with unit tests
• All new code was formatted with Prettier
• Linting passes
• Tests pass
• Commit messages follow the commit guidelines
• Documentation has been added/updated

[shuse2]

Seems like something wrong with prettier setting in lisk folder, but let's fix it in lisk-core setting