Add HBTC to the list of allowed CDP collaterals

1. Parameter change cosmos.params.v1beta1

   {
       "@type": "/cosmos.gov.v1.MsgExecLegacyContent",
       "content": {
           "@type": "/cosmos.params.v1beta1.ParameterChangeProposal",
           "title": "Add HBTC to the list of allowed CDP collaterals",
           "changes": [
               {
                   "key": "CollateralParams",
                   "value": "[{\"denom\":\"bnb\",\"type\":\"bnb-a\",\"liquidation_ratio\":\"1.500000000000000000\",\"debt_limit\":{\"denom\":\"usdx\",\"amount\":\"3000000… (2,761 characters)",
                   "subspace": "cdp"
               },
               {
                   "key": "GlobalDebtLimit",
                   "value": "{\"denom\":\"usdx\",\"amount\":\"142500000000000\"}",
                   "subspace": "cdp"
               }
           ],
           "description": "This proposal adds HBTC as an allowed CDP collateral.  The global debt limit is set to 142,500,000 USDX (BNB-A: 30M, BTC-A: 15M, XRPB-A: 7.5M, BUSD-A: 50M, BUSD-B: 10M, KAVA-A: 10M, HARD-A: 10M, HBT-C: 10M)."
       },
       "authority": "kava10d07y265gmmuvt4z0w9aw880jnsr700jxh8cq5"
   }

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