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Csv2libsvm converter added #172

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Hi,
I wrote a basic script to convert a classical "csv" file to libsvm format.Explanation is added.

A classical csv format is like (as an example):

classs accelX accelY accelZ gyroX gyroY gyroZ
1 -0.329013 1.111466 9.943973 0.064446 -0.0759 -0.095295
1 -0.329013 1.111466 9.943973 0.064446 -0.0759 -0.095295

Converted to:
1 1:-0.329013 2:1.111466 3:9.943973 4:0.064446 5:-0.0759 6:-0.095295
1 1:-0.329013 2:1.111466 3:9.943973 4:0.064446 5:-0.0759 6:-0.09529

Also, a csv sample and desired output uploaded to test script.

Hope this basic script help the community.

A CSV file format below:
classs	accelX	accelY	accelZ	gyroX	gyroY	gyroZ
1	-0.329013	1.111466	9.943973	0.064446	-0.0759	-0.095295
1	-0.329013	1.111466	9.943973	0.064446	-0.0759	-0.095295

A converted libsvm format below:
1 1:-0.329013 2:1.111466 3:9.943973 4:0.064446 5:-0.0759 6:-0.095295
1 1:-0.329013 2:1.111466 3:9.943973 4:0.064446 5:-0.0759 6:-0.095295
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