Offset fixer - cleanup test cases

dezendorf/applications/offset-fixer/data/.gitignore

@@ -0,0 +1,2 @@
+*.new
+*.bak

dezendorf/applications/offset-fixer/data/test_ad_removal.srt

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+1
+00:00:06,000 --> 00:00:12,074
+Watch Movies, TV Series and Live Sports
+Signup Here -> WWW.ADMITME.APP
+
+2
+00:02:18,592 --> 00:02:20,092
+Are you okay?
+
+3
+01:28:28,426 --> 01:28:30,008
+how many more of them...
+
+4
+01:28:31,305 --> 01:29:31,529
+Watch Movies, TV Series and Live Sports
+Signup Here -> WWW.ADMITME.APP
+