Uncompressing data

[cjrolo]

This PR does the following changes:

• Creates the decompress_data function to generate a CompressedStream from data and generate the output
• All compressors now implement: <compressor_name>_to_data function. This decompresses the input with that specific compressor
• Updated tests for the compressors to now work with the new _to_data methods
• CompressorFrame added the decompress method, which calls for a given compressor is _to_data method
• Compressor Enum now has the support via the decompress function to support frame decompression
• CompressedStream new decompress method, chains decompress all the frames and returns a vector with data.

Fixed some bugs:

• CompressorFrame sample numbers were not set
• Due to the above, Size (in bytes) was being used as sample number and creating wrong outputs
• Added FFT as a compressor for the command line

[rukai]

Seems reasonable