[Feature] Implement leo execute

[collinc97]

Upgrades

• snarkvm v0.14.5 updates
• leo run significant speedup
• leo execute command

[codecov]

Codecov Report

Merging #2491 (8410b64) into testnet3 (59355c0) will increase coverage by 0.11%.
The diff coverage is 90.19%.

@@             Coverage Diff              @@
##           testnet3    #2491      +/-   ##
============================================
+ Coverage     78.90%   79.01%   +0.11%     
============================================
  Files           155      156       +1     
  Lines          4916     4947      +31     
  Branches       4915     4947      +32     
============================================
+ Hits           3879     3909      +30     
- Misses         1037     1038       +1     

Impacted Files	Coverage Δ
compiler/compiler/tests/compile.rs	90.90% <ø> (-0.52%)	⬇️
errors/src/errors/package/package_errors.rs	0.00% <0.00%> (ø)
...ompiler/passes/src/flattening/flatten_statement.rs	65.43% <66.66%> (ø)
compiler/compiler/tests/utilities/mod.rs	89.18% <88.88%> (+1.31%)	⬆️
leo/package/src/root/env.rs	93.33% <93.33%> (ø)
compiler/compiler/tests/execute.rs	91.52% <100.00%> (-1.46%)	⬇️
...er/passes/src/code_generation/visit_expressions.rs	77.92% <100.00%> (ø)
.../src/static_single_assignment/rename_expression.rs	94.05% <100.00%> (ø)
leo/package/src/package.rs	80.64% <100.00%> (ø)

... and 10 files with indirect coverage changes

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[d0cd]

Looks mostly good to go!
Left a few minor nits that can be addressed at your discretion.

[bendyarm]

Works well for me. leo run is now super-fast, thanks!
leo execute works too, and prints out a JSON structure.
Is there a switch to turn off the output of the JSON structure?