Insert DataUiHandler and error message

Also change the behaviour of some conf file, now all library are
installed in the application (base on macos)
Added pattern, first step. Needs to reconnect all the functions

Now the new pattern is implemented but all the functions needs to be
reconnected.
First step, second commit
Second step, generic time data is near to works again
Further step, now all the plot widget functionality are working again and the genericsinus data

Remains the partial and repeated functions and all the import/export
functions
Improved delegate pattern, added plot transparency
partial time data working again
Start to fix repeatedTD
curves are implemented, finding a solution for envelope
This is a stable version with a envelope curves working, but the envelope UI is not yet present.
Envelope start to works again. Amplitude doesn't respond
Improved behaviour of envelope set

Now the envelope set data rescale the UI and start with the correct
scale.
Fixed some issues was yet present

Envelope time scale is correct and rescale correct when some time
params change
Time scale for rtd and ptd now are are correct at init
Fix some issue in removing curves

The plot wasn't updated ( the digest curves remains plotted without
although the curve/s was removed
Some basic functionality now works again

play audio
export audio
new project
remove selected/all
Copy & paste start to works
final implementation of time data, import and paste mechanism on thee way
Fix some issue with envelope durin init
Duplicate curves is on the road again
Save project on the road again