Apply im-nimf-qt5 major updates

[5HARK]

Due to the major update of the nimf and nimf qt5 module, tdesktop will stopped with an error when user use new version of nimf.

I had build and test tdesktop with this new version of im-nimf-qt5. and it was OK.

[ghost]

Hello.
I have not tried it, but I think probably only 4 files and extra files are needed.

im-nimf-qt5.cpp
nimf-events.h
nimf-im.h
nimf-types.h

nimf.json
nimf.pro