telepathy suite: python3ise everything

[classabbyamp]

• telepathy-qt5: update to 0.9.8.
• telepathy-farstream: doesn't need python
• telepathy-logger: make codegen work with python3
• telepathy-haze: update to 0.8.1.
• telepathy-salut: make codegen work with python3
• telepathy-gabble: patch for python3

Testing the changes

• I tested the changes in this PR: briefly (builds)

cc @Duncaen, a couple of these are yours

[Duncaen]

Only packaged telepathy-qt5 for use with a package that has been long removed. Looks like the only user of telepathy-qt5 is choqok which also seems kinda dead.

[classabbyamp]

The whole telepathy suite seems kinda dead

[classabbyamp]

component        release  commit
rakia            2013     2013
hanging          ?        2015
farstream        2014     2016
logger           2015     2016
nonsense         ?        2018
salut            2012     2018
spec             2019     2019
haze             2020     2020
idle             2020     2020
morse            ?        2020
gabble           2016     2021
glib             2021     2021
mission-control  2020     2021
qt               2019     2022