Added react navigation drawer, initial template pages, and drawer sidebar design

src/routes/Home/Home.tsx

@@ -0,0 +1,20 @@
+import * as React from "react";
+import styles from "../../styles";
+import { font_sizes } from "../../styles";
+import { View, Text } from "react-native";
+
+export default function Home() {
+  return (
+    <View style={styles.background}>
+      <Text
+        style={{
+          fontSize: font_sizes.large,
+          color: "white",
+          textAlign: "center",
+        }}
+      >
+        Template Homepage
+      </Text>
+    </View>
+  );
+}