Add fine-grained QML / QtQuick performance benchmarks

This commit adds a series of benchmarks to test the performance of
fundamental areas of the QML engine (compilation, instantiation, binding
evaluation, positioning) using types provided by the QtQuick QML module.

Change-Id: Iecec058c45aea0bd728f03123fa2aa79d6af8efa
Reviewed-by: Alan Alpert (Personal) <416365416c@gmail.com>
Reviewed-by: Christopher Adams <chris.adams@jollamobile.com>