feat: denom metadata

[aljo242]

Closes #761

What does this PR does?

Update the config.yml to add denom metadata to the chain.

How to test

• inspect the genesis state after running ignite chain serve

      "denom_metadata": [
        {
          "description": "The native staking token of Starport Network",
          "denom_units": [
            {
              "denom": "uspn",
              "exponent": 0,
              "aliases": [
                "millispn"
              ]
            },
            {
              "denom": "mspn",
              "exponent": 3,
              "aliases": [
                "microspn"
              ]
            },
            {
              "denom": "spn",
              "exponent": 6,
              "aliases": []
            }
          ],
          "base": "uspn",
          "display": "spn",
          "name": "Starport Network",
          "symbol": "SPN"
        }
      ]
    },

• query

spnd query bank denom-metadata
metadatas:
- base: uspn
  denom_units:
  - aliases:
    - millispn
    denom: uspn
    exponent: 0
  - aliases:
    - microspn
    denom: mspn
    exponent: 3
  - aliases: []
    denom: spn
    exponent: 6
  description: The native staking token of Starport Network
  display: spn
  name: Starport Network
  symbol: SPN
pagination:
  next_key: null
  total: "1"

[codecov]

Codecov Report

Merging #799 (2e9410b) into develop (9e38ac7) will increase coverage by 0.00%.
The diff coverage is n/a.

@@           Coverage Diff            @@
##           develop     #799   +/-   ##
========================================
  Coverage    10.56%   10.56%           
========================================
  Files          315      315           
  Lines        73466    73466           
========================================
+ Hits          7760     7763    +3     
+ Misses       65519    65517    -2     
+ Partials       187      186    -1     

Impacted Files	Coverage Δ
x/campaign/simulation/store.go	84.45% <0.00%> (+2.02%)	⬆️