[Qt-desktop] Add debug dialogs

Finished the disasm / memory and VFPU dialogs to have the same feature as windows.

Can be a little unstable, still trying to correct some rare crash. Step Over crash every time so it's disabled until it's corrected.

For those testing, if the Step into is weird, I've patched my native/base/mutex.h cause the cond_wait didn't work as it is now. Don't know if it's only a problem with my install so I don't push it for now.

pthread_cond_wait(&event_, &mtx.native_handle());

into 
pthread_mutex_lock(&mtx.native_handle());
pthread_cond_wait(&event_, &mtx.native_handle());
pthread_mutex_unlock(&mtx.native_handle());


New feature :
- Display breakpoint list to find them in the asm by one click.
- Display thread id, name, status, entry point and pc. Go to pc by click. Can force a thread to resume with right click menu.
- Display DisplayList id / status / start address and current address. Using right click menu, can display the display list code and current position. We can also step in the current Display list (not very useful yet, see below).

Also updated the translations files, and add a file for french translation.

Next to come : 
- Memory texture display. Display the texture in memory by entering the same data than the display list give to ppsspp. 
- Display live framebuffer draw while stepping into the display list.
- Other thing?