Change 2D DCT from using transpose to two seperate 1DDCT functions
Merge pull request #5 from KyOChiang/master

Implement IDCT to inverse transform 1 column of 2D array.
Merged DCT with IDCT(using two 1DDCT functions)
Add test for insertIntoArray
Add test for quantizationFunction for 50% quality quantization
Add test for dequantizationFunction
Add test for dequantizationFunction, trying to do release 1
Add custom test to test 8x8 matrix
Add test to read and write 11bit
Implement release 1
Implement Zig-Zag reordering.
Add test for release 2 with raw data file
Merge https://github.com/soofatt/ImageCompressor