Add XCM fee API

[zjb0807]

Closes: #2746

const assets = await api.call.xcmPaymentApi.queryAcceptablePaymentAssets(5);
const weightToAssets = await api.call.xcmPaymentApi.queryWeightToAssetFee(
  {
    refTime: 10_000_000_000n,
    profSize: 0n,
  },
  {
    V5: {
      parents: 1,
      interior: 'Here',
    }
  }
);

const xcmToWeight = await api.call.xcmPaymentApi.queryXcmWeight(
  {
    V5:
    [
          {
            Transact: {
              originKind: 'Superuser',
              requireWeightAtMost: {
                refTime: 200000000n,
                proofSize: 3000n,
              },
              call: {
                encoded: '0x0a040070617261d007000000000000000000000000000000000000000000000000000000',
              },
            }
          },
    ],
  },
);

const deliveryFees = await api.call.xcmPaymentApi.queryDeliveryFees(
    { v5: { parents: 1, interior: { x1: [{ parachain: 1000 }] } } },
    {
        V5: [
            {
            Transact: {
                originKind: 'SovereignAccount',
                requireWeightAtMost: {
                refTime: 200000000n,
                proofSize: 3000n
                },
                call: {
                encoded: '0x0000' // Simple call
                }
            }
            }
        ]
    },
);

console.log(
  'assets:', assets,
  '\nweightToAssets: ', weightToAssets,
  '\nxcmToWeight: ', xcmToWeight,
  '\ndeliveryFees: ', deliveryFees,
);


// dryRunCall & dryRunXcm
const transferCall = api.tx.balances.transferKeepAlive('5GrwvaEF5zXb26Fz9rcQpDWS57CtERHpNehXCPcNoHGKutQY', '1000000000000');

const dryRunCallResult = await api.call.dryRunApi.dryRunCall(
  { system: { signed: '5GrwvaEF5zXb26Fz9rcQpDWS57CtERHpNehXCPcNoHGKutQY' } },
  transferCall.method.toHex(),
  5
);

const dryRunXcmResult = await api.call.dryRunApi.dryRunXcm(
  {
    v5: { parents: 1, interior: { x1: [{ parachain: 1000 }] } }
  },
  {
    V5:
    [
          {
            Transact: {
              originKind: 'Superuser',
              requireWeightAtMost: {
                refTime: 200000000n,
                proofSize: 3000n,
              },
              call: {
                encoded: '0x0a040070617261d007000000000000000000000000000000000000000000000000000000',
              },
            }
          },
    ],
  },
);

console.log(
  'dryRunCallResult:', dryRunCallResult,
  '\ndryRunXcmResult: ', dryRunXcmResult
);

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 61.92%. Comparing base (8a1b261) to head (82d9631).
⚠️ Report is 1 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #2919      +/-   ##
==========================================
+ Coverage   61.90%   61.92%   +0.02%     
==========================================
  Files          69       69              
  Lines        9469     9469              
==========================================
+ Hits         5862     5864       +2     
+ Misses       3607     3605       -2     

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