Objectives You will learn how to implement a class You will learn to use a header file You will learn how to create an object from a class you made Use a the vector class from the STL (Optional) . Background The pinned four-bar linkage is a fundamental building block for many machines. A pinned four- bar linkage is shown below in figure 1: otor Grey Ground Link Length = 15 inches ength of Orange Input Link (inches) : :Length of Green Side Link (inches Length of Blue Coupler Link (inches] 5.00 11.00 18.00 Figure 1: Pinned four-bar linkage with orange input link driven by motor Every pinned four-bar linkage has two side links, a ground link, and a coupler link. The links are connected to each other by smooth pin joints; hence the name, pinned four-bar linkage. One of the links, (the input link) is driven by a motor. For our exercise, the input link will always be the shortest link. Depending upon the lengths of the links, the pinned four-bar linkage will either