Activate global signer state machine

[jacinta-stacks]

Closes https://github.com/stx-labs/core-epics/issues/82

[codecov]

Codecov Report

❌ Patch coverage is 49.55157% with 225 lines in your changes missing coverage. Please review.
✅ Project coverage is 78.04%. Comparing base (4f535d8) to head (6258388).

Files with missing lines	Patch %	Lines
stacks-node/src/tests/signer/v0.rs	30.86%	215 Missing ⚠️
libsigner/src/v0/messages.rs	91.74%	9 Missing ⚠️
stacks-node/src/tests/signer/mod.rs	94.11%	1 Missing ⚠️

❌ Your project check has failed because the head coverage (78.04%) is below the target coverage (80.00%). You can increase the head coverage or adjust the target coverage.

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #6742      +/-   ##
===========================================
+ Coverage    77.77%   78.04%   +0.26%     
===========================================
  Files          585      585              
  Lines       361916   362206     +290     
===========================================
+ Hits        281498   282695    +1197     
+ Misses       80418    79511     -907     

Files with missing lines	Coverage Δ
stacks-signer/src/v0/signer_state.rs	75.18% <100.00%> (+0.21%)	⬆️
stacks-node/src/tests/signer/mod.rs	68.72% <94.11%> (-5.52%)	⬇️
libsigner/src/v0/messages.rs	84.77% <91.74%> (-1.86%)	⬇️
stacks-node/src/tests/signer/v0.rs	22.93% <30.86%> (+1.42%)	⬆️

... and 79 files with indirect coverage changes

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[aaronb-stacks]

This changeset looks good to me, but I think we can't merge global signer state machine activation to develop before we've concluded mainnet testing of the signer state machine.