Temp checking is not being aggressive enough

• Utilize ΔT's

• One place in the code could be scan.Scan.post_align_self_test() as it's checking the standard deviation.
  np.std(self.processed_T1s) > 1 or np.std(self.processed_T2s) > 1 or np.std(self.processed_T3s) > 1

• Another place in the code could be scan.Scan.post_align_self_test() as it's checking for uniform values between all temps compared to the first one via the following (are_floats_equal passes values abs(a - b) < 0.01 with 0.01 adjustable (see issue comment for code details).