feature: #1261 Added collecting parameter design pattern (#2134)

* #1261 Added base directories, folders, and file for the collecting parameter design pattern.

* #1261 Added initial comment

* #1261 Added Maven Dependencies

* #1261 Added Maven Dependencies

* #1261 Finished README.md file

* #1261 Added tests

* #1261 Code adheres to the standard

* #1261 Code adheres to the standard

* #1261 Code adheres to the standard

* #1261
- Added table to README.md
- Explicitly state that result is the collecting parameter
- Improved applicability
- Separated PrinterItem.java from PrinterQueue.java
- Tests work now
- Giant comment split

* #1261 fixed programmatic example in README.md.

* #1261 updated class diagram

* #1261 Fixed everything.

* #1261 Minor edit to README.md.

* #1261 Minor edit to README.md.

* #1261 Minor updates.

* #1261 Fixed code style.

* #1261 Removed getPrinterQueue test

* #1261 Removed code smells

* #1261 Added UML plugin.

* #1261 Dependencies resolved.

* #1261 Specified the UML diagram paths. Perhaps this will work.

* #1261 pom.xml updated with UML wrapper. Maybe this will create class diagram when built?

* #1261 UML added.

* #1261
- README.md obeys the YAML requirements
- Typo in README.md fixed
- UMLWrapper removed from module pom.xml
- More comments added

Should be able to merge now :)

collecting-parameter/src/main/java/com/iluwatar/collectingparameter/PrinterItem.java

@@ -0,0 +1,34 @@
+package com.iluwatar.collectingparameter;
+
+import java.util.Objects;
+
+/**
+ * This class represents a Print Item, that should be added to the queue.
+ **/
+public class PrinterItem {
+  PaperSizes paperSize;
+  int pageCount;
+  boolean isDoubleSided;
+  boolean isColour;
+
+  /**
+   * The {@link PrinterItem} constructor.
+   **/
+  public PrinterItem(PaperSizes paperSize, int pageCount, boolean isDoubleSided, boolean isColour) {
+    if (!Objects.isNull(paperSize)) {
+      this.paperSize = paperSize;
+    } else {
+      throw new IllegalArgumentException();
+    }
+
+    if (pageCount > 0) {
+      this.pageCount = pageCount;
+    } else {
+      throw new IllegalArgumentException();
+    }
+
+    this.isColour = isColour;
+    this.isDoubleSided = isDoubleSided;
+
+  }
+}