Update diplodocus tutorial + Add new figures

doc/diplodocus_tutorial/Tutorial.tex

...torial/figures/securityStuff/arch_alice_bob_Autononce.pdf

...rial/figures/securityStuff/arch_alice_bob_keyExchange.pdf

...cus_tutorial/figures/securityStuff/arch_alice_bob_mac.pdf

...s_tutorial/figures/securityStuff/arch_alice_bob_nonce.pdf

...orial/figures/securityStuff/arch_alice_bob_sampleAuto.pdf

...cus_tutorial/figures/securityStuff/arch_alice_bob_sym.pdf

...figures/securityStuff/encrypt-config-keyexchange-aenc.png

...cus_tutorial/figures/securityStuff/encrypt-config-mac.png

...tutorial/figures/securityStuff/encrypt-config-nonce-n.png

...orial/figures/securityStuff/encrypt-config-nonce-symN.png

...torial/figures/securityStuff/encrypt-config-symmetric.png

.../figures/securityStuff/fv_alice_bob_Autononce_with_ad.pdf

...cus_tutorial/figures/securityStuff/fv_alice_bob_nonce.pdf