Started Extended INVOKE paper.

Some intial work on Introduction, Motivation and Desing decisions sections.
Wording for option 2.

Added full standard wording for option 2.
Changed proposed wording.

Change proposed wording to contain less repetition with usage of secondary enumeration.
Revorked introduction.

Revorked introduction section and the first part of motivation.
Reworked motivation examples.

Reworked examples presented in the subsection of the motivation.