Display app address in goal app info & show logs are binary in REST API

[jasonpaulos]

Summary

This is a follow up to #2661. It adds the app account address to the goal app info command, and it changes the log item type format in the REST API to "byte" in order to show that it's binary data. As a bonus, the encoder will automatically convert to base64 for us.

Test Plan

Added a unit test to verify the encoder converts logs to base64.

[jannotti]

I dig the auto base64.

Linter is mad about partitiontest.

[codecov-commenter]

Codecov Report

Merging #2836 (3d91527) into master (e32b2c2) will decrease coverage by 0.01%.
The diff coverage is 42.85%.

@@            Coverage Diff             @@
##           master    #2836      +/-   ##
==========================================
- Coverage   47.28%   47.26%   -0.02%     
==========================================
  Files         351      351              
  Lines       56381    56382       +1     
==========================================
- Hits        26659    26651       -8     
- Misses      26730    26737       +7     
- Partials     2992     2994       +2     

Impacted Files	Coverage Δ
cmd/goal/application.go	12.77% <0.00%> (-0.03%)	⬇️
daemon/algod/api/server/v2/handlers.go	0.00% <ø> (ø)
daemon/algod/api/server/v2/utils.go	14.72% <0.00%> (ø)
daemon/algod/api/server/v2/dryrun.go	61.79% <100.00%> (ø)
ledger/blockqueue.go	82.18% <0.00%> (-2.88%)	⬇️
agreement/cryptoVerifier.go	75.73% <0.00%> (-2.21%)	⬇️
agreement/proposalManager.go	96.07% <0.00%> (-1.97%)	⬇️
catchup/service.go	69.35% <0.00%> (-0.78%)	⬇️
network/wsPeer.go	74.37% <0.00%> (ø)
ledger/acctupdates.go	62.63% <0.00%> (+0.08%)	⬆️
... and 2 more

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