feat(statics): implement common Cosmos blockchain infrastructure

TICKET: COIN-4863

- Add cosmos configuration to EnvironmentTemplate interface
- Add CosmosNetwork interface with Cosmos-specific properties
- Support for addressPrefix, validatorPrefix, denom, gasAmount, and gasLimit

Author: baltiyal

modules/sdk-core/src/bitgo/environments.ts

@@ -93,6 +93,12 @@ interface EnvironmentTemplate {
       apiToken?: string;
     };
   };
+  // The key here is coinFamily and it will be same for both mainnet and testnet (eg: 'cronos')
+  cosmos?: {
+    [key: string]: {
+      nodeUrl: string;
+    };
+  };
 }
 
 export interface Environment extends EnvironmentTemplate {

modules/statics/src/networks.ts

@@ -79,6 +79,14 @@ export interface AccountNetwork extends BaseNetwork {
   readonly blockExplorerUrl?: string;
 }
 
+export interface CosmosNetwork extends AccountNetwork {
+  readonly addressPrefix: string;
+  readonly validatorPrefix: string;
+  readonly denom: string;
+  readonly gasAmount: string;
+  readonly gasLimit: number;
+}
+
 /**
  * Specification name type of the chain. Used in setting up the registry
  */