adcs-66 - fix errors in the mathematical model

[ldeloe]

CHANGES

• acceleration is now incremented using jerk. NOTE: jerk is currently set to zero. We need the true value from the reaction wheel datasheet
• the satellite's acceleration is now calculated as a sum of each reaction wheel
• the calculation for the satellite's acceleration has been updated to reflect the equation used in the unit tests
• the reaction wheel's moment and omega are now represented in vector form by multiplying by the axis of rotation

REASON The simulation was failing unit tests 5 and 6. All unit tests now pass

TESTING Output now matches the six unit tests

GITHUB LINK

66

Signed-off-by: Lily de Loe