LibVideo: Implement CICP color space conversion

This adds a struct called CodingIndependentCodePoints and related enums
that are used by video codecs to define its color space that frames
must be converted from when displaying a video.

Pre-multiplied matrices and lookup tables are stored to avoid most of
the floating point division and exponentiation in the conversion.

Userland/Libraries/LibVideo/DecoderError.h

@@ -25,6 +25,8 @@ enum class DecoderErrorCategory : u32 {
     Memory,
     // The input is corrupted.
     Corrupted,
+    // Invalid call.
+    Invalid,
     // The input uses features that are not yet implemented.
     NotImplemented,
 };