BD-2240 Modify token locking to include staking

This document contains design information relating to the following story

https://fioprotocol.atlassian.net/secure/RapidBoard.jspa?rapidView=2&projectKey=BD&modal=detail&selectedIssue=BD-2240&assignee=5b1708cb73c23f253a5f8692

Design:

• Include link to FIP

• Summarize changes to fio and fio.contracts

• Note files that will be updated

• List new/updated actions and endpoints

• Note changes to structs and ABIs

• Detail any table updates or migrations

• Note any changes to global functionality

• Summary of risks, impacts and logistics analysis

SDK Requirements

• Note functional updates needed for SDKs

Functional Test plan

• List all of the pertinent tests, required setup, and expected results.

Performance Testing plan

• List all of the pertinent tests, required setup, and expected results.

Fork Testing plan

• List all of the pertinent tests, required setup, and expected results.List all pertinent tests pertaining to testing with different versions of the core code.

• List all pertinent tests pertaining to pre-contracts update and post contracts update

Rollout/Release plan

• make a comprehensive list of all necessary changes

• include (new actions, removed actions, MSIGs for all required operations, and step by step instructions.

Rollout/Release verification plan

• include step by set instructions for how to verify that the changes are on chain after rollout.

• Bonus points if you make an automated script performing the verifications.