updated makescript versions
cleanup, added common.h

Moved existing src to src/oldsrc
Added common.h (logging, assert)
Got basic frame extraction to work again

Got frame extraction to work, some updates on makescript
Cleanup

Modified gitignore, deleted the oldsrc, updates to makescript
Merge branch 'rework'

DONE:
    - removed oldsrc
    - updated .gitignore, README and makescript
    - basic frame extraction works again (however there is no class design
      and there is some testing in the main extraction routine)

TODO:
    - RAII for AVPacket and AVContexts
    - Design Implementation (see wiki diagram)
    - Log Cleanup / Testing removal