Added a script to check offset values for stubs

[3246251196]

@afxgroup
I understand that all offsets must be divisible by 4, but there is also a gap. Is this expected: hence, the script I have installed fails.

[3246251196]

@afxgroup
If you run that script, you will get a non-zero return code because there is a gap larger than 4. Do you want me to allow that in the script, or should there not be a gap?

@walkero-gr
It may be that when inserting a new stub entry we can use this script for Jenkins or something to indicate an issue.