Whitebalance Presets for Pentax K-30

The whitebalance presets were extracted directly from DNG.

For those interested in how I calculated the values:

Take *any* DNG shot with the camera, the set white balance doesn't matter.
Run it through exiftool with
```
exiftool -"WB_RGGB*" filename
```

You get a list of all available WhiteBalance values, however you need to calculate the proper values out of it.
Take value 1, divide it by value 2.
Take value 4, divide it by value 3.

Example output
```
$ exiftool -"WB_RGGB*" IMGP2392.DNG
WB RGGB Levels Daylight         : 18129 8192 8192 13346
WB RGGB Levels Shade            : 21662 8192 8192 9961
WB RGGB Levels Cloudy           : 19534 8192 8192 11411
WB RGGB Levels Tungsten         : 10895 8192 8192 24758
WB RGGB Levels Fluorescent D    : 22385 8192 8192 12862
WB RGGB Levels Fluorescent N    : 19193 8192 8192 14313
WB RGGB Levels Fluorescent W    : 17449 8192 8192 17698
WB RGGB Levels Flash            : 20555 8192 8192 12282
WB RGGB Levels Fluorescent L    : 14597 8192 8192 22146
```

We are only interested in Daylight for this example:
```
WB RGGB Levels Daylight         : 18129 8192 8192 13346

18129 / 8192 = 2.21301269531 # Red Balance 
13346 / 8192 = 1.62915039063 # Blue Balance

Green Balance is fixed == 1
```

Now just format it properly:

```
{ "PENTAX", "K-30", Daylight, 0,    { 2.21301269531, 1, 1.62915039063, 0 } }, 
```