First working version of SQ with huffman coding.

src/main/java/azgracompress/DataCompressor.java

...azgracompress/compression/CompressorDecompressorBase.java

...ain/java/azgracompress/compression/ImageDecompressor.java

...ain/java/azgracompress/compression/SQImageCompressor.java

...n/java/azgracompress/compression/SQImageDecompressor.java

src/main/java/azgracompress/fileformat/QCMPFileHeader.java

src/main/java/azgracompress/huffman/Huffman.java

src/main/java/azgracompress/huffman/HuffmanNode.java

src/main/java/azgracompress/io/InBitStream.java

src/main/java/azgracompress/io/OutBitStream.java