Add QtIFW manipulations by SDKTool

Since QTCREATORBUG-17290, we can add CMake to Kit.

I'm work around simple make QtSDK compatible CMake package.

Since CMake 3.1 it can make installers based on QtIFW tools via CPack IFW generator.

Now QtSDK distributed with QtIFW 2.0, but it not auto detected and no in kit.

We need add new operatoions to SDKTool:

• addQtIFW;
• rmQtIFW;

Then modify operation addKit to manage added QtIFW tools.

Then we should predefine QTIFWDIR (like ../Tools/QtInstallerFramework/2.0) environment variable in 'Build Environment' to take CMake what QtIFW tools he should use.