New: Parse more poor p2p file naming

Closes #3266

src/NzbDrone.Core.Test/ParserTests/SingleEpisodeParserFixture.cs

@@ -134,6 +134,11 @@ namespace NzbDrone.Core.Test.ParserTests
         [TestCase("Plus belle la vie - S14E3533 FRENCH WEBRIP H.264 AAC (09.05.2018)", "Plus belle la vie", 14, 3533)]
         [TestCase("The 100 - S01E02 - Earth Skills HDTV-1080p AVC DTS [EN+FR+ES+PT+DA+FI+NB+SV]", "The 100", 1, 2)]
         [TestCase("Series Title - S01E01 - Day 100 [SDTV]", "Series Title", 1, 1)]
+        [TestCase("Series.Title.S01.Ep.01.English.AC3.DL.1080p.BluRay-Sonarr", "Series Title", 1, 1)]
+        [TestCase("Series.Title.S01.E.01.English.AC3.DL.1080p.BluRay-Sonarr", "Series Title", 1, 1)]
+        [TestCase("Series.Title.S01.Ep01.English.AC3.DL.1080p.BluRay-Sonarr", "Series Title", 1, 1)]
+        [TestCase("Series.Title.S01.E01.English.AC3.DL.1080p.BluRay-Sonarr", "Series Title", 1, 1)]
+        [TestCase("Series.Title.S01EP01.English.AC3.DL.1080p.BluRay-Sonarr", "Series Title", 1, 1)]
         //[TestCase("", "", 0, 0)]
         public void should_parse_single_episode(string postTitle, string title, int seasonNumber, int episodeNumber)
         {

src/NzbDrone.Core/Parser/Parser.cs

@@ -172,8 +172,8 @@ namespace NzbDrone.Core.Parser
                 new Regex(@"^(?<title>.+?)[-_. ]S(?<season>(?<!\d+)(?:\d{1,2}|\d{4})(?!\d+))(?:[-_. ]?[ex]?(?<episode>(?<!\d+)\d{1,2}(?!\d+)))+",
                           RegexOptions.IgnoreCase | RegexOptions.Compiled),
 
-                //Single episode season or episode S1E1 or S1-E1 or S1.Ep1
-                new Regex(@"(?:.*(?:\""|^))(?<title>.*?)(?:\W?|_)S(?<season>(?<!\d+)\d{1,2}(?!\d+))(?:\W|_)?Ep?(?<episode>(?<!\d+)\d{1,2}(?!\d+))",
+                //Single episode season or episode S1E1 or S1-E1 or S1.Ep1 or S01.Ep.01
+                new Regex(@"(?:.*(?:\""|^))(?<title>.*?)(?:\W?|_)S(?<season>(?<!\d+)\d{1,2}(?!\d+))(?:\W|_)?Ep?[ ._]?(?<episode>(?<!\d+)\d{1,2}(?!\d+))",
                           RegexOptions.IgnoreCase | RegexOptions.Compiled),
 
                 //3 digit season S010E05