Display stake amount in token units in CLI command output

[tjanez]

SUMMARY

To have a better UX when using the oasis-node CLI with a hardware wallet (e.g. Ledger) or on its own, it should also support displaying stake amounts in token unit (rather than base units used internally).

For example, oasis stake info currently displays something like:

Total supply: 10000000000000000000
Common pool: 7999217230119682890
Last block fees: 0
Staking threshold (entity): 100000000000
Staking threshold (node-validator): 100000000000
Staking threshold (node-compute): 100000000000
Staking threshold (node-storage): 100000000000
Staking threshold (node-keymanager): 100000000000
Staking threshold (runtime-compute): 100000000000
Staking threshold (runtime-keymanager): 100000000000

It could display something like:

Total supply: AMBER 10000000000
Common pool: AMBER 7999217230.11968289
Last block fees: 0
Staking threshold (entity): AMBER 100
Staking threshold (node-validator): AMBER 100
Staking threshold (node-compute): AMBER 100
Staking threshold (node-storage): AMBER 100
Staking threshold (node-keymanager): AMBER 100
Staking threshold (runtime-compute): AMBER 100
Staking threshold (runtime-keymanager): AMBER 100

where AMBER is the token's ticker symbol for the currently running Oasis Amber Network.

We could support configuring both:

• amount of base token units one token unit is worth (e.g. 1000000000),
• token's ticker symbol (e.g. AMBER).

ISSUE TYPE

• Feature Idea

[kostko]

It would probably be best if these attributes were configured in the genesis document as that ensures that changing any of them would generate a different chain domain separation context and thus any transactions signed using the wrong genesis document would not be valid in the original network.