Add types for ganache-core (#27572)

types/ganache-core/ganache-core-tests.ts

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+import { provider } from "ganache-core";
+
+provider({ verbose: true });

types/ganache-core/index.d.ts

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+// Type definitions for ganache-core 2.1
+// Project: https://github.com/trufflesuite/ganache-core#readme
+// Definitions by: Leonid Logvinov <https://github.com/LogvinovLeon>
+// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+// TypeScript Version: 2.4
+
+import { Provider } from "ethereum-protocol";
+export interface GanacheOpts {
+    verbose?: boolean;
+    logger?: {
+        log(msg: string): void;
+    };
+    port?: number;
+    network_id?: number;
+    networkId?: number;
+    mnemonic?: string;
+    gasLimit?: number;
+}
+export function provider(opts: GanacheOpts): Provider;

types/ganache-core/tsconfig.json

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+{
+  "compilerOptions": {
+    "module": "commonjs",
+    "lib": [
+      "es6"
+    ],
+    "noImplicitAny": true,
+    "noImplicitThis": true,
+    "strictNullChecks": true,
+    "strictFunctionTypes": true,
+    "baseUrl": "../",
+    "typeRoots": [
+      "../"
+    ],
+    "types": [],
+    "noEmit": true,
+    "forceConsistentCasingInFileNames": true
+  },
+  "files": [
+    "index.d.ts",
+    "ganache-core-tests.ts"
+  ]
+}

types/ganache-core/tslint.json

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+{ "extends": "dtslint/dt.json" }