Naming: Change name of methods to define image operations

[foresterre]

Find better names for the methods which define the two incorporated ways to execute image operations (currently AOS and IOCA).

There are currently two ways to perform image operations on an image. The first is by means of the cli option --apply-operations <operations> (we abbreviate this method as AOS for apply operations script). The second is by means of 'image operations as cli arguments' (this method is currently known and abbreviated as IOCA).

• source

AOS: apply operations script IOCA: image operations as cli arguments

What's "wrong":

• Difficult to pronounce and remember