Add typescript

Author: OlehDutchenko

.gitignore

@@ -1,3 +1,4 @@
 /.cache
 /.idea
+/build
 /node_modules

package-lock.json

@@ -4,8 +4,20 @@
   "description": "microbe-ui for React",
   "main": "index.js",
   "scripts": {
+    "build": "tsc",
     "test": "echo \"Error: no test specified\" && exit 1"
   },
+  "prettier": {
+    "arrowParens": "always",
+    "bracketSpacing": true,
+    "jsxBracketSameLine": false,
+    "printWidth": 90,
+    "semi": true,
+    "singleQuote": true,
+    "trailingComma": "none",
+    "tabWidth": 4,
+    "useTabs": true
+  },
   "repository": {
     "type": "git",
     "url": "git+https://github.com/microbe-ui/react-microbe-ui.git"
@@ -16,5 +28,9 @@
   "bugs": {
     "url": "https://github.com/microbe-ui/react-microbe-ui/issues"
   },
-  "homepage": "https://github.com/microbe-ui/react-microbe-ui#readme"
+  "homepage": "https://github.com/microbe-ui/react-microbe-ui#readme",
+  "devDependencies": {
+    "prettier": "^1.19.1",
+    "typescript": "^3.8.3"
+  }
 }

package.json

@@ -0,0 +1,23 @@
+{
+  "compilerOptions": {
+    "outDir": "build",
+    "module": "esnext",
+    "target": "es5",
+    "lib": ["es6", "dom", "es2016", "es2017"],
+    "sourceMap": true,
+    "allowJs": false,
+    "jsx": "react",
+    "declaration": true,
+    "moduleResolution": "node",
+    "forceConsistentCasingInFileNames": true,
+    "noImplicitReturns": true,
+    "noImplicitThis": true,
+    "noImplicitAny": true,
+    "strictNullChecks": true,
+    "suppressImplicitAnyIndexErrors": true,
+    "noUnusedLocals": true,
+    "noUnusedParameters": true
+  },
+  "include": ["src"],
+  "exclude": ["node_modules", "build"]
+}