BlackBerry 10 specific widget style as a style plugin

- upstreaming the implementation of a BlackBerry 10 specific widget style
- modfied to be integrated as a style plugin being a part of the QtBase
- according docs are provided in QtDocs in another commit
- attributing the excellent work at KDAB who was the original developer

Change-Id: I57c548f6ec4cf02f125ee216f1ce1b764f29e8bb
Reviewed-by: Bernd Weimer <bweimer@blackberry.com>
Reviewed-by: Rafael Roquetto <rafael.roquetto@kdab.com>

src/plugins/plugins.pro

@@ -3,5 +3,6 @@ TEMPLATE = subdirs
 SUBDIRS *= sqldrivers
 !winrt:qtHaveModule(network): SUBDIRS += bearer
 qtHaveModule(gui): SUBDIRS *= imageformats platforms platforminputcontexts platformthemes generic
+qtHaveModule(widgets): SUBDIRS *= styles
 
 !winrt:!wince*:qtHaveModule(widgets):SUBDIRS += printsupport

src/plugins/styles/bb10style/bb10lightstyle.qrc

@@ -0,0 +1,54 @@
+<RCC>
+    <qresource prefix="/">
+        <file>light/button/core_button_disabled.png</file>
+        <file>light/button/core_button_inactive.png</file>
+        <file>light/button/core_button_pressed.png</file>
+        <file>light/checkbox/core_checkbox_checked.png</file>
+        <file>light/checkbox/core_checkbox_disabled.png</file>
+        <file>light/checkbox/core_checkbox_disabledchecked.png</file>
+        <file>light/checkbox/core_checkbox_enabled.png</file>
+        <file>light/checkbox/core_checkbox_pressed.png</file>
+        <file>light/checkbox/core_checkbox_pressedchecked.png</file>
+        <file>light/radiobutton/core_radiobutton_checked.png</file>
+        <file>light/radiobutton/core_radiobutton_disabled.png</file>
+        <file>light/radiobutton/core_radiobutton_disabledchecked.png</file>
+        <file>light/radiobutton/core_radiobutton_enabled.png</file>
+        <file>light/radiobutton/core_radiobutton_pressed.png</file>
+        <file>light/slider/core_slider_active.png</file>
+        <file>light/slider/core_slider_disabled.png</file>
+        <file>light/slider/core_slider_handle.png</file>
+        <file>light/slider/core_slider_handle_disabled.png</file>
+        <file>light/slider/core_slider_handle_pressed.png</file>
+        <file>light/slider/core_slider_inactive.png</file>
+        <file>light/slider/core_slider_vactive.png</file>
+        <file>light/slider/core_slider_vdisabled.png</file>
+        <file>light/slider/core_slider_vinactive.png</file>
+        <file>light/slider/core_slider_black.png</file>
+        <file>light/slider/core_slider_enabled.png</file>
+        <file>light/slider/core_slider_vblack.png</file>
+        <file>light/slider/core_slider_venabled.png</file>
+        <file>light/button/core_button_active.png</file>
+        <file>light/lineedit/core_textinput_bg.png</file>
+        <file>light/lineedit/core_textinput_bg_disabled.png</file>
+        <file>light/lineedit/core_textinput_bg_focused.png</file>
+        <file>light/progressbar/core_progressindicator_bg.png</file>
+        <file>light/progressbar/core_progressindicator_complete.png</file>
+        <file>light/progressbar/core_progressindicator_fill.png</file>
+        <file>light/progressbar/core_progressindicator_vbg.png</file>
+        <file>light/progressbar/core_progressindicator_vcomplete.png</file>
+        <file>light/progressbar/core_progressindicator_vfill.png</file>
+        <file>light/combobox/core_dropdown_button.png</file>
+        <file>light/combobox/core_dropdown_button_arrowdown.png</file>
+        <file>light/combobox/core_dropdown_button_arrowdown_pressed.png</file>
+        <file>light/combobox/core_dropdown_button_arrowup.png</file>
+        <file>light/combobox/core_dropdown_button_disabled.png</file>
+        <file>light/combobox/core_dropdown_button_pressed.png</file>
+        <file>light/combobox/core_dropdown_checkmark.png</file>
+        <file>light/combobox/core_dropdown_divider.png</file>
+        <file>light/combobox/core_dropdown_menu.png</file>
+        <file>light/combobox/core_dropdown_menuup.png</file>
+        <file>light/combobox/core_listitem_active.png</file>
+        <file>light/listitem/core_listitem_active.png</file>
+        <file>light/listitem/core_listitem_divider.png</file>
+    </qresource>
+</RCC>

src/plugins/styles/bb10style/bb10style.pro

@@ -0,0 +1,28 @@
+TARGET = bb10styleplugin
+
+PLUGIN_TYPE = styles
+PLUGIN_CLASS_NAME = BlackBerry10StylePlugin
+load(qt_plugin)
+
+INCLUDEPATH += $$PWD
+
+QT += widgets
+
+HEADERS += \
+    qpixmapstyle.h \
+    qbb10brightstyle.h \
+    qbb10darkstyle.h \
+    qbb10styleplugin.h
+
+SOURCES += \
+    qpixmapstyle.cpp \
+    qbb10brightstyle.cpp \
+    qbb10darkstyle.cpp \
+    qbb10styleplugin.cpp
+
+RESOURCES += \
+    qbb10brightstyle.qrc \
+    qbb10darkstyle.qrc
+
+OTHER_FILES += qbb10styleplugin.json
+