v2 Enable local development (#52)

- Create local dev environment
- Add gas-client and google-apps-script-webpack-dev-server packages for development
- Add dev/ wrapper app
- Update webpack config to support development environment
- Redesigned READMEs
- Support typescript
- Update npm scripts
- Organize and update .gitignore file
- Add .vscode settings for clasp files
- Remove tracking for files in dist/

src/client/dialog-demo-bootstrap/components/FormInput.tsx

@@ -0,0 +1,57 @@
+import React, { useState, ChangeEvent, FormEvent } from 'react';
+import { Form, Button, Col, Row } from 'react-bootstrap';
+
+interface FormInputProps {
+  submitNewSheet: (
+    sheetName: string
+  ) => {
+    name: string;
+    index: number;
+    isActive: boolean;
+  };
+}
+
+const FormInput = ({ submitNewSheet }: FormInputProps) => {
+  const [newSheetName, setNewSheetName] = useState('');
+
+  const handleChange = (event: ChangeEvent<HTMLInputElement>) =>
+    setNewSheetName(event.target.value);
+
+  const handleSubmit = (event: FormEvent<HTMLFormElement>) => {
+    event.preventDefault();
+    if (newSheetName.length === 0) return;
+    submitNewSheet(newSheetName);
+    setNewSheetName('');
+  };
+
+  return (
+    <Form onSubmit={handleSubmit}>
+      <Form.Group controlId="formNewSheet">
+        <Form.Label>Add a new sheet</Form.Label>
+        <Row>
+          <Col xs={10}>
+            <Form.Control
+              type="text"
+              placeholder="Sheet name"
+              value={newSheetName}
+              onChange={handleChange}
+            />
+          </Col>
+          <Col xs={2}>
+            <Button variant="primary" type="submit">
+              Submit
+            </Button>
+          </Col>
+        </Row>
+        <Form.Text className="text-muted">
+          Enter the name for your new sheet.
+        </Form.Text>
+        <Form.Text className="text-muted">
+          <i>This component is written in typescript!</i>
+        </Form.Text>
+      </Form.Group>
+    </Form>
+  );
+};
+
+export default FormInput;