Multithreaded Buffered Reader

[Enn3Developer]

Implement, in a way or the other, a file reader that loads the content in a buffer and does so in another thread
The goal is to parallelize the code analyzer and the file reading to gain something with the performance (this change should be visible with larger files)
Prob this should be for 3.1 but can later be changed to 3.X or even 4.0 in case it misses the feature window

[Maiori44]

3.1 already had a bunch, let's stop giving it more

[Enn3Developer]

I set 3.4 as a milestone but if this isn't ready for that release this will be postponed