Restructuring plus some fixes

[pal-saugstad]

In this branch, the Hauppauge core driver is included by means of a git submodule. This makes the build process easier to automate.

In addition, there are some fixes:
hauppauge_hdpvr2 -> commit 3403282: Enable PAL color decoding
HauppaugeUSB -> commit e10ecff: Init audio in CVBS mode

Also changed: Some result files have been moved to locations which I consider to be more in line with the general Linux recommendations.

[pal-saugstad]

There might be a problem with the audio when using this version. I discovered this when I power cycled the system. I don't know (for now) what the problem is and which specific input configurations are affected. I will debug this ASAP.

[jpoet]

Thank you very much for helping to improving this code.

I completely agree that incorporating the Hauppauge code make it much easier to manage. The reason I didn't do that to begin with, is because of licensing. A lot of the Hauppuage code has copyright notices with no statements about permission to copy or modify, which makes me a bit nervous. When I asked Hauppauge about it, they said they didn't think I needed to worrie about it, but I would hate to get sued.

[pal-saugstad]

Right, I see that there might be problems regarding licensing when looking through the source code of the Hauppauge driver.

[pal-saugstad]

Hauppauge has now indicated that they are going to clarify the license issues soon.

[pal-saugstad]

Hauppauge and my company, NSSLGlobal Technologies AS, have now (yesterday) signed an agreement which states that we may modify the source code of the original Hauppauge driver and distribute it. I assume that @jpoet and Hauppauge will sign a similar explicit agreement.