Fix bugs and add some small functions

In this release:

• Display FPS in Debug Info filter.
• Implement UI to change camera, flip photo.
• Add shortcut: Press Space to capture photo.
• Remove Record button. I will not add this feature soon.
• Better drawing glasses filter.
• Fix bug: Crashing in LBF and slow in Kazemi Landmark detector when faces go out of the photo boundaries.

First alpha release

This is the first completed build.

In this release, I only provide executable file for Windows x64.