[Minor] changes to figures

Signed-off-by: Oleg Komarov <o.komarov11@imperial.ac.uk>
[Minor] isfeatchange: help change, clearer

Signed-off-by: Oleg Komarov <o.komarov11@imperial.ac.uk>
[Exclude] some .tex auxiliary files
[Add/Change] within TAQ mismatch and type count, link coverage

Signed-off-by: Oleg Komarov <o.komarov11@imperial.ac.uk>
[Add] figures.tex

Signed-off-by: Oleg Komarov <o.komarov11@imperial.ac.uk>