ast: change ACpInstruction super class to ARichBinaryInstruction

Signed-off-by: Alexis Laferrière <alexis.laf@xymus.net>
tests: adds a few instructions to laf/range.pep to test maths

Signed-off-by: Alexis Laferrière <alexis.laf@xymus.net>
analysis range: adds support for arithmetic operations

Signed-off-by: Alexis Laferrière <alexis.laf@xymus.net>
analysis range: prevents the analysis of going into an infinite loop

Signed-off-by: Alexis Laferrière <alexis.laf@xymus.net>