Merge try

Trying to merge
Merge fix

Fixing errors that popped up after trying to merge.
Merge fix 2

-
Library - step one and half

- Moved enum & struct to more appropriate place (also fixes error with
compiling under linux)
Library - fix

Fix of includes
Library - fix

-
Library - step one and half

Decoupled 708 from ccextractor.h (finally), reworked some things as
well.
Library - step one and half

More removal of links.
Commented unused variables

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Commented unused vars

Added a ; too much.
Library - intermediate

This one has errors!
Library - step one and half

Moved most of 608_helper functions to ccx_encoders_helpers, as they seem
more logical. No idea yet where the last one has to go (used in both
encoder/decoder 608 right now)
Library - step one and hafl

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Intigration of ffmpeg in ccextractor
Updated MD
corrected timing for tudor using ffmpeg
corrected timing in spupng xml file
Merge from upstream

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Merge conflict fix

-
Library - step one and half

- Cleaned out header files + adjusted accordingly
- Decoupled spupng_encoder from ccextractor.h
- Decoupled ccx_encoders_common from ccextractor.h