HW2: Add the input files
HW2: build the hw2 structure:
	create HW2-Collocations projecet for HW2
	add hw2.py (submission file)
		load all input texts
		open output files
		call the required analysis functions	add RawFrequencyAnalysis.py
	add Dummy analysis function
		RawFrequencyAnalysis.py
		tTestAnalysis.py
		PmiAnalysis.py

Signed-off-by: unknown <zkk12345@gmail.com>