SDRPLay plugin: add files for Windows build

plugins/samplesource/sdrplay/sdrplay.pro

@@ -0,0 +1,42 @@
+#--------------------------------------------------------
+#
+# Pro file for Android and Windows builds with Qt Creator
+#
+#--------------------------------------------------------
+
+TEMPLATE = lib
+CONFIG += plugin
+
+QT += core gui widgets multimedia opengl
+
+TARGET = inputrtlsdr
+
+DEFINES += USE_SSE2=1
+QMAKE_CXXFLAGS += -msse2
+DEFINES += USE_SSE4_1=1
+QMAKE_CXXFLAGS += -msse4.1
+
+INCLUDEPATH += $$PWD
+INCLUDEPATH += ../../../sdrbase
+INCLUDEPATH += ../../../libsdrplay
+
+CONFIG(Release):build_subdir = release
+CONFIG(Debug):build_subdir = debug
+
+SOURCES += sdrplaygui.cpp\
+  sdrplayinput.cpp\
+  sdrplayplugin.cpp\
+  sdrplaysettings.cpp\
+  sdrplaythread.cpp
+
+HEADERS += sdrplaygui.h\
+  sdrplayinput.h\
+  sdrplayplugin.h\
+  sdrplaysettings.h\
+  sdrplaythread.h
+
+FORMS += sdrplaygui.ui
+
+LIBS += -L../../../sdrbase/$${build_subdir} -lsdrbase
+
+RESOURCES = ../../../sdrbase/resources/res.qrc