Add types for coinlist

types/coinlist/coinlist-tests.ts

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+import coins = require('coinlist');
+import coinsJson = require('coinlist/src/coins.json');
+
+// $ExpectType Coin[] & CoinsAPI
+coins;
+
+// $ExpectType Coin[]
+coinsJson;
+
+let coinsArr = [
+    {
+        id: 'bitcoin',
+        symbol: 'BTC',
+        name: 'Bitcoin',
+    },
+    {
+        id: 'litecoin',
+        symbol: 'LTC',
+        name: 'Litecoin',
+    },
+];
+
+coinsArr = coins;
+coinsArr = coinsJson;
+
+// $ExpectType Coin | undefined
+coins.get('BTC');
+
+// $ExpectType string | undefined
+coins.get('BTC', 'name');
+// $ExpectType string | undefined
+coins.get('BTC', 'symbol');
+// $ExpectType string | undefined
+coins.get('BTC', 'id');
+
+coins.map(coin => coin.name);

types/coinlist/index.d.ts

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+// Type definitions for coinlist 3.1
+// Project: https://github.com/lukechilds/coinlist
+// Definitions by: BendingBender <https://github.com/BendingBender>
+// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+
+import coinsJson = require('./src/coins.json');
+
+export = coins;
+
+declare const coins: coins.Coin[] & coins.CoinsAPI;
+
+declare namespace coins {
+    type Coin = coinsJson.Coin;
+
+    interface CoinsAPI {
+        get(symbol: string): Coin | undefined;
+        get(symbol: string, property: 'id' | 'symbol' | 'name'): string | undefined;
+    }
+}

types/coinlist/src/coins.json.d.ts

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+export = coins;
+
+declare const coins: coins.Coin[];
+
+declare namespace coins {
+    interface Coin {
+        id: string;
+        symbol: string;
+        name: string;
+    }
+}

types/coinlist/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",
+        "src/coins.json.d.ts",
+        "coinlist-tests.ts"
+    ]
+}

types/coinlist/tslint.json

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