added code and example files for converting from hr.min.sec to only sec

src/python/convertCSVTimeformat/MinToSec.py

+# Programm that takes a csv with timestamps from videofiles in formats hr.min.sec 
+# or min.sec or sec entrys  and converts them to only seconds.
+# It needs a groundTruth.csv file as an input. This file should have a header
+# with the videofilename
+# Example of csv file that will work: 
+# Myggbukta-101
+# 40, 58
+# 1.49, 3.56
+# 1.10.30, 1.13.45  
+# The header makes it so in this example you get an outputfile named groundTruthMyggbukta-101.csv
+
+
+import csv
+delimiter = "."
+file = open('groundTruth.csv')
+csvreader = csv.reader(file)
+header = []
+header = next(csvreader)
+secs = []
+for row in csvreader:
+    newRow = []
+    for item in row:
+        newRow.append(sum(int(x) * 60 ** i for i, x in enumerate(reversed(item.split(delimiter)))))  #Stack overflow https://stackoverflow.com/questions/6402812/how-to-convert-an-hmmss-time-string-to-seconds-in-python
+    secs.append(newRow)    
+file.close
+for name in header:
+    filename = "groundTruth" + name + ".csv"
+with open(filename, 'w', newline="") as newFile:
+    csvwriter = csv.writer(newFile)
+    #csvwriter.writerow(header)
+    for row in secs:
+        csvwriter.writerow(row)
\ No newline at end of file

src/python/convertCSVTimeformat/groundTruth.csv

+Myggbukta-[2021-05-21_10-47-06]-716
+29, 34
+34, 1.26
+1.49, 1.57
+2.06, 2.12
+2.13, 2.31
+2.32, 7.28
+7.28, 9.02
+9.34, 9.45
+9.56, 10.00
+10.12, 10.21
+10.41, 11.13
+11.38, 12.07
+12.53, 13.14
+15.03, 15.08
+15.47, 17.27
+19.02, 19.20
+20.29, 20.51
+21.35, 22.17
+23.22, 23.36
+23.40, 24.11
+24.13, 24.29
+24.29, 24.58
+25.13, 25.43
+27.09, 27.46
+28.43, 29.00
\ No newline at end of file

src/python/convertCSVTimeformat/groundTruthMyggbukta-[2021-05-21_10-47-06]-716.csv

+29,34
+34,86
+109,117
+126,132
+133,151
+152,448
+448,542
+574,585
+596,600
+612,621
+641,673
+698,727
+773,794
+903,908
+947,1047
+1142,1160
+1229,1251
+1295,1337
+1402,1416
+1420,1451
+1453,1469
+1469,1498
+1513,1543
+1629,1666
+1723,1740