Added controls directory

MATLAB/thrustAndDragConstant/calc_drag_constant.m → controls/MATLAB/thrustAndDragConstant/calcDragConstant.m

-function [ Kd ] = calc_drag_constant( data, Pmin, Pmax, Rm, Kv, Kq, If )
+function [ Kd ] = calcDragConstant( data, Pmin, Pmax, Rm, Kv, Kq, If )
 %CALC_DRAG_CONSTANT 
 %   Calculates the drag constant (Kd) given experimental data. The drag
 %   constant is described in detail in sections 4.2.5, 4.2.6, and 5.5.4.1 

MATLAB/thrustAndDragConstant/calc_thrust_constant.m → controls/MATLAB/thrustAndDragConstant/calcThrustConstant.m

-function [ Kt ] = calc_thrust_constant( data )
+function [ Kt ] = calcThrustConstant( data )
 %CALC_THRUST_CONSTANT
 %   Calculates the thrust constant (Kt) given experimental data. The thrust
 %   constant is described in detail in sections 4.2.1.1 and 5.5.1 of 

MATLAB/zeroLoadCurrent/zero_load_current.m → controls/MATLAB/zeroLoadCurrent/zeroLoadCurrent.m

-function [I_0, I_1, I_2, dutyCycle, error, residual_error, residual_error_withIfConstant] = zero_load_current(absoluteFilePath)
+function [I_0, I_1, I_2, dutyCycle, error, residual_error, residual_error_withIfConstant] = zeroLoadCurrent(absoluteFilePath)
 %This function takes in an absolute file path to a .csv or Excel file with 
 %the following format:
 %   Second column should be the motor speed in revolutions per minute