Design a circuit to take the Two's Complement of a 4-bit number: In the same project, create a new VHDL design module and add the components that you will need to implement the 4-bit Two's Complement circuit: You will have one 4-bit input and one 4-bit output. You will again use component declaration and port mapping to create a modular design. How will you design this circuit? How many Full Adders and other gates will you need in order to create this 4-bit Two's Complement circuit? Draw a block diagram/schematic of your design including any components or logic gates. Label the components that you do use (e.g. RCA, Full Adders, etc). You will include this block diagram/schematic in your report. Create a VHDL test bench to test the output for all possible input signal combinations. Simulate you design and verify your output. Include the waveforms in your report. Design a circuit to take the Two's Complement of a 4-bit number: In the same project, create a new VHDL design module and add the components that you will need to implement the 4-bit Two's Complement circuit: You will have one 4-bit input and one 4-bit output. You will again use component declaration and port mapping to create a modular design. How will you design this circuit? How many Full Adders and other gates will you need in order to create this 4-bit Two's Complement circuit? Draw a block diagram/schematic of your design including any components or logic gates. Label the components that you do use (e.g. RCA, Full Adders, etc). You will include this block diagram/schematic in your report. Create a VHDL test bench to test the output for all possible input signal combinations. Simulate you design and verify your output. Include the waveforms in your report