added script for process 'footprint_extraction'

pipeline.nf

@@ -17,6 +17,7 @@ process footprint_extraction {
 
 	script:
 	"""
+	python ${path_bin}/call_peaks.py --bigwig ${bigWig} --bed ${bed} --output_file ${name}_called_peaks.bed --window_length ${params.window_length} --step ${params.step} --threshold ${params.threshold_footprint_extraction}
 	"""
 }