Function: `BitMaskClear`

Performs a bitwise mask clear operation.

Method Signature

BitMaskClear(number=[integer], start=[integer], length=[integer])

Argument	Type	Required	Description
`number`	`integer`	`true`	32-bit signed integer on which the mask clear operation is performed.
`start`	`integer`	`true`	Start bit for the clear mask (Integer in the range 0-31, inclusive).
`length`	`integer`	`true`	Length of bits in the clear mask (Integer in the range 0-31, inclusive).