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

src/components/Button/DrawerButton.tsx

@@ -0,0 +1,23 @@
+import * as React from "react";
+import { Text, Pressable, GestureResponderEvent } from "react-native";
+import styles from "../../styles";
+
+export interface props {
+  children: React.ReactNode;
+  onPress: (event: GestureResponderEvent) => void;
+  color: string;
+}
+
+export default function DrawerButton(props: props) {
+  return (
+    <Pressable
+      onPress={props.onPress}
+      style={{
+        ...styles.button_template,
+        ...{ backgroundColor: props.color, width: "95%" },
+      }}
+    >
+      {props.children}
+    </Pressable>
+  );
+}