Classic Video-Audio Presentation Code

Much more work on RenderContext, including refactoring to use PixelRows to reduce alignment requirements on pixmaps. Added MemorySource.RefTo. Can now query a RenderContext for a pixmap located in Memory.

Added LED font, but have not yet registered it. Some work on TileFont, including the ability to address individual glyphs. Added MutableTileFont. More work on the tutorial.

Font serialization now implemented, but for 1BPP only.

Finally got font autogeneration partially implemented. Fixed improper image for cp437 terminal, will begin populating image data in next revision.

Added 8x16 fonts, fixed some errors in the 8x8 fonts. Added 16x16 font for ASCII.

More work on the book. Began fleshing out bitmap fonts. More work on memory subsystem, including adding DirtyableMemorySource.

Began implementing angles; continued work on matrices, added Memory subsystem.

Began refactoring of vector generator; need to add Scale, Rotation, and Dot back into derived vectors.

Added unit tests, preparing to refactor the generation of Vector.

Added angles; significantly refactored Vectors and added Matrices and Angles (still need to write generator for this).