RuntimeTransacton for TransactionView types

[apfitzge]

Problem

• RuntimeTransaction is the entrypoint for our execution pipeline
• Need TransactionView types to fit into this static -> dynamic RuntimeTransaction meta pipeline

Summary of Changes

• separate is_simple_vote_transaction_impl
• move RuntimeTransaction transition paths to separate files
  • thought here is that SDK types and TransactionView go through different, although similar, transition paths
  • Shared impl(s) in the top-level file
• TransactionView::TransactionVersion separate file to be made public (not sure how clippy didn't yell about this before!)
• Implement RuntimeTransaction instantiation for {Sanitized|Resolved}TransactionView types

Fixes #

[tao-stones]

lgtm