Add burnchain advancement feature

[BowTiedRadone]

This PR introduces a seed-based method for advancing the burnchain in both invariant and property testing. Logs now display the current Stacks and Bitcoin block heights.

Sample Output:

# type=test

₿      1 Ӿ      6   wallet_4 [PASS] reverse test-reverse-string 
₿      1 Ӿ      7   wallet_7 [PASS] reverse test-reverse [1764733795]
₿      2 Ӿ      9   wallet_7 [PASS] reverse test-reverse-string toLoc
₿      2 Ӿ     10   wallet_3 [PASS] reverse test-reverse-string 7H0/t
₿      3 Ӿ     12   wallet_5 [PASS] reverse test-reverse-string -

# type=invariant

₿     48 Ӿ     95   deployer [PASS] counter invariant-counter-gt-zero 
₿     48 Ӿ     97   wallet_5        counter decrement 
₿     48 Ӿ     97   wallet_5 [PASS] counter invariant-counter-gt-zero 
₿     57 Ӿ    108   wallet_5        counter increment 
₿     57 Ӿ    108   wallet_8 [PASS] counter invariant-counter-gt-zero 
₿     57 Ӿ    110   deployer        counter add 2147483639
₿     57 Ӿ    110   wallet_4 [PASS] counter invariant-counter-gt-zero 
₿     57 Ӿ    112   wallet_2        counter increment 
₿     57 Ӿ    112   wallet_7 [PASS] counter invariant-counter-gt-zero 
₿     62 Ӿ    119   wallet_3        counter add 6
₿     62 Ӿ    119   wallet_7 [PASS] counter invariant-counter-gt-zero

Resolves #76.

[moodmosaic]

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