Placeholder: Leverage match opcode

[michaeldiamant]

Problem

algorand/go-algorand#4626 adds match opcode support. The story requests leveraging match in PyTeal + considering if it ought to be exposed to end users.

Consideration needed in these areas:

• Consider where usage is applicable. At a minimum, it feels like a good fit is leveraging match for ABI Router method invocation routing.
• Consider if/how to leverage + expose pushints and pushbytess.

For end user support, consider introduction of a switch-like statement.

Solution

Dependencies

Urgency