Setup base navigation

app/src/main/java/com/futo/circles/ui/sign_up/SignUpFragment.kt

+package com.futo.circles.ui.sign_up
+
+import android.os.Bundle
+import android.view.View
+import androidx.fragment.app.Fragment
+import com.futo.circles.R
+
+class SignUpFragment : Fragment(R.layout.sign_up_fragment) {
+
+    companion object {
+        fun newInstance() = SignUpFragment()
+    }
+
+    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+        super.onViewCreated(view, savedInstanceState)
+
+    }
+
+}
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app/src/main/res/layout/sign_up_fragment.xml

+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent">
+
+    <TextView
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:text="Sign Up"
+        android:textSize="36sp"
+        android:textStyle="bold"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent" />
+
+</androidx.constraintlayout.widget.ConstraintLayout>
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app/src/main/res/navigation/nav_graph_log_in.xml

+<?xml version="1.0" encoding="utf-8"?>
+<navigation xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    app:startDestination="@id/logInFragment"
+    android:id="@+id/nav_graph_log_in">
+
+
+    <fragment
+        android:id="@+id/logInFragment"
+        android:name="com.futo.circles.ui.sign_in.LogInFragment"
+        android:label="Log In"
+        tools:layout="@layout/log_in_fragment" >
+        <action
+            android:id="@+id/action_logInFragment_to_signUpFragment"
+            app:destination="@id/signUpFragment" />
+    </fragment>
+
+    <fragment
+        android:id="@+id/signUpFragment"
+        android:name="com.futo.circles.ui.sign_up.SignUpFragment"
+        android:label="Log In"
+        tools:layout="@layout/sign_up_fragment" />
+
+
+</navigation>
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