Create TabSeparatedFileReader to read in .txt files (#51)

Can read in and save the contents of tab separated TXT files.
Reads in as an ArrayList of String arrays.

src/virtualgameshelf/backend/fileIO/TabSeparatedFileReader.java

@@ -0,0 +1,69 @@
+package virtualgameshelf.backend.fileIO;
+
+import java.io.BufferedReader;
+import java.io.File;
+import java.io.FileNotFoundException;
+import java.io.FileReader;
+import java.io.FileWriter;
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.Arrays;
+
+public class TabSeparatedFileReader {
+    // returns arrayList of entries from a tab separated .txt file
+    public static ArrayList<String[]> readFromFile(String filePath) {
+        File file = new File(filePath);
+        String[] array; // Stores a single, split line entry
+        ArrayList<String[]> arrayList = new ArrayList<>(); // ArrayList of all entries
+        try {
+            // http://stackoverflow.com/a/19575418/3357935
+            FileReader fileReader = new FileReader(file);
+            BufferedReader buf = new BufferedReader(fileReader);
+            String lineJustFetched = null;
+
+            while (true) {
+                lineJustFetched = buf.readLine();
+                if (lineJustFetched == null) {
+                    // end of file
+                    break;
+                } else {
+                    // '-1' prevents empty entries from being trimmed
+                    array = lineJustFetched.split("\t", -1);
+                    arrayList.add(array);
+                }
+            }
+            buf.close();
+        } catch (FileNotFoundException e) {
+            System.err.println("Unable to find file " + file.getAbsolutePath());
+            e.printStackTrace();
+        } catch (IOException e) {
+            System.err.println("Error while reading file " + file.getAbsolutePath());
+            e.printStackTrace();
+        }
+
+        return arrayList;
+    }
+
+    // Saves arrayList of arrays to a tab separated file
+    public static boolean saveToFile(String filePath, ArrayList<String[]> arrayList) {
+
+        File file = new File(filePath);
+        try {
+            FileWriter writer = new FileWriter(file);
+            for (String[] s : arrayList) {
+                String formattedString = Arrays.toString(s)
+                        .replace(", ", "\t")   // replace commas with tab separators
+                        .replace("[", "")      // remove right bracket
+                        .replace("]", "");     // remove left bracket
+                writer.write(formattedString + "\r\n");
+            }
+            writer.close();
+        } catch (IOException e) {
+            System.err.println("Error writing to file " + file.getAbsolutePath());
+            e.printStackTrace();
+            return false;
+        }
+
+        return true;
+    }
+}