Remove FluidUi controls

We are using QtQuick Controls now.

Issue: #4
Remove FluidCore enumerations

Don't need this anymore as our controls were removed.

Issues: #4
RangeModel is deprecated

Remove useless model.

Issue: #4
Remove SVG stuff

We don't need this as we're migrating to QtQuick Controls.

Issue: #4
Remove FallbackComponent

Not needed after QtQuick Controls migration.

Issue: #4
Bump version to 0.1.90

This will soon become the next stable version.
Find Qml and Quick modules through the Qt5 package

This simplifies Qt modules detection.
Feature summary

Replace log feature macro with feature summary.