[chainstate] Soft fork kit -- fork selection

[jcnelson]

As part of implementing SIP 011, the Stacks nodes need a way to identify and signal for soft forks, as well as a way to identify Stacks blocks that they either must or must not build off of. This issue is for allowing the node operator to choose which chain history they will want to build off of, as well as allowing them to choose to ignore certain histories.

[stale]

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[stale]

This issue has been automatically closed. Please reopen if needed.

[blockstack-devops]

This issue has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.