Add OpenToday component to show todays open/close status, used in app

src/Components/OpenToday/Component.tsx

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+import * as React from 'react';
+import * as Moment from 'moment';
+import * as Linq from 'linq';
+import { Holiday, HolidayList, getWeekendHoliday } from '../../Data/index';
+import { ClosedReason } from '../ClosedReason';
+
+export class OpenToday extends React.Component<{
+    question: OpenToday.OpenOrClose,
+    allHolidays: HolidayList
+}, {}> {
+    question: OpenToday.OpenOrClose;
+    allHolidays: HolidayList;
+    answer: { open: boolean, holiday: Holiday | undefined };
+
+    constructor(props: { question: OpenToday.OpenOrClose, allHolidays: HolidayList }) {
+        super(props);
+        this.question = props.question;
+        this.allHolidays = props.allHolidays;
+
+        this.processAnswer();
+    }
+
+    processAnswer(): void {
+        var todayDateTime = Moment("2018-03-11");
+
+        {
+            const matchingHoliday = Linq
+                .from<Holiday>(this.allHolidays)
+                .firstOrDefault(
+                    (eachHoliday, _tmp) => todayDateTime.isSame(eachHoliday.Date, 'day')
+                );
+    
+            if (matchingHoliday === null) {
+                this.answer = { open: true, holiday: undefined };
+            } else {
+                this.answer = { open: false, holiday: matchingHoliday };
+            }
+        }
+
+        {
+            const weekendHoliday = getWeekendHoliday(todayDateTime);
+
+            if (typeof weekendHoliday !== "undefined") {
+                this.answer = { open: false, holiday: weekendHoliday };
+            }
+        }
+    }
+
+    render() {
+        const answerBoolean = (this.question === OpenToday.OpenOrClose.Open ? this.answer.open : !this.answer.open);
+
+        return (
+            <div className="OpenToday">
+                <div className="question">Is Nifty50 (NSE) {this.question} today?</div>
+                <div className="answerComposite">
+                    <div className="answerBoolean">
+                        {answerBoolean ? "Yes" : "No"}
+                    </div>
+
+                    {!this.answer.open ? <ClosedReason holiday={this.answer.holiday as Holiday} /> : undefined}
+
+                </div>
+            </div>
+        );
+    }
+}
+
+export module OpenToday {
+    export enum OpenOrClose {
+        Open = 'open',
+        Close = 'closed'
+    }
+}

src/Components/OpenToday/index.tsx

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+export { OpenToday } from './Component';