Added 'Raise Alarm' button on main screen

app/src/main/res/layout/main.xml

@@ -116,19 +116,29 @@
 
     <LinearLayout
         android:layout_width="match_parent"
-        android:layout_height="wrap_content">
+        android:layout_height="wrap_content"
+        android:baselineAligned="false">
 
         <Button
             android:id="@+id/acceptAlarmButton"
-            android:layout_width="wrap_content"
+            android:layout_width="0dp"
             android:layout_height="wrap_content"
+            android:layout_weight="1"
             android:text="@string/AcceptAlarmBtnTxt" />
 
         <Button
             android:id="@+id/cancelAudibleButton"
-            android:layout_width="wrap_content"
+            android:layout_width="0dp"
             android:layout_height="wrap_content"
+            android:layout_weight="1"
             android:text="@string/CancelAudibleButtonTxt" />
+        <Button
+            android:id="@+id/manualAlarmButton"
+            android:layout_width="0dp"
+            android:layout_height="wrap_content"
+            android:layout_weight="1"
+            android:backgroundTint="#ff0000"
+            android:text="@string/ManualAlarmBtnTxt" />
     </LinearLayout>
 
     <com.github.mikephil.charting.charts.BarChart

app/src/main/res/values/strings.xml

@@ -318,4 +318,5 @@
     <string name="AutoPruneDbSummary">Automatically Prune (Trim) the Database periodically to prevent excessive storage capacity (memory) usage.</string>
     <string name="remoteLogPeriodSummary">The period (in seconds) between attempts to upload data to the remote server.   Each attempt only uploads a single event, not all the available data.</string>
     <string name="remoteLogPeriodTitle">Remote Log Period (seconds)</string>
+    <string name="ManualAlarmBtnTxt">Raise Alarm</string>
 </resources>