style: implemented string conversion method to PascalCase

app/src/main/java/com/cappielloantonio/tempo/util/Util.java

@@ -14,4 +14,40 @@ public class Util {
             return null;
         }
     }
+
+    public static String toPascalCase(String name) {
+        if (name == null || name.isEmpty()) {
+            return name;
+        }
+
+        StringBuilder pascalCase = new StringBuilder();
+
+        char newChar;
+        boolean toUpper = false;
+        char[] charArray = name.toCharArray();
+
+        for (int ctr = 0; ctr <= charArray.length - 1; ctr++) {
+            if (ctr == 0) {
+                newChar = Character.toUpperCase(charArray[ctr]);
+                pascalCase = new StringBuilder(Character.toString(newChar));
+                continue;
+            }
+
+            if (charArray[ctr] == '_') {
+                toUpper = true;
+                continue;
+            }
+
+            if (toUpper) {
+                newChar = Character.toUpperCase(charArray[ctr]);
+                pascalCase.append(newChar);
+                toUpper = false;
+                continue;
+            }
+
+            pascalCase.append(charArray[ctr]);
+        }
+
+        return pascalCase.toString();
+    }
 }