Removed .pro.user files

Those files are created by qtcreator and do not belong to the project
repository.

Signed-off-by: Celelibi <celelibi@gmail.com>
Moved .a libs

They most likely belong to lib directory.

Signed-off-by: Celelibi <celelibi@gmail.com>
Don't try to compile the missing files

The .pro reference some files that do not exists. Thus qmake can't
generate working Makefiles.

Signed-off-by: Celelibi <celelibi@gmail.com>
Add g++ flag DNO_TEMPLATE_IMPLEMENTATION

This flag prevent array.h to try to include array.hpp, which do not
exists.

Signed-off-by: Celelibi <celelibi@gmail.com>
Don't compile imgGradient.cpp

Not only it's quite empty, but its compilation does remove the provided
one. Which is not wanted.

Signed-off-by: Celelibi <celelibi@gmail.com>
Add project pdf

Signed-off-by: Celelibi <celelibi@gmail.com>