Main

WIP for libpackjpg reorganization: finished moving functions into the
wrapper class

WIP for libpackjpg reorganization: moved all jpeg specific functions into the wrapper class

WIP for libpackjpg reorganization: stashing current progress so I can go
watch TV while working

WIP for libpackjpg reorganization: moved all main interface and main
functions inside the wrapper class

WIP for libpackjpg reorganization: moved all global variables to be
instance variables and converted a couple of trivial functions.

WIP for libpackjpg reorganization.

Reformat modified source files.

Adding unifdef'ed files and CMake config to build.

Adding "raw" packJPG source from the upstream repository (commit 59e8d45d463cfab96155ffccb77b1207b18c614b).

Adding git monitor script.