Fix project paths in solution

***NO_CI***

Author: josesimoes

nanoFramework.Logging.sln

@@ -3,15 +3,15 @@ Microsoft Visual Studio Solution File, Format Version 12.00
 # Visual Studio Version 16
 VisualStudioVersion = 16.0.31105.61
 MinimumVisualStudioVersion = 10.0.40219.1
-Project("{11A8DD76-328B-46DF-9F39-F559912D0360}") = "nanoFramework.Logging", ".\nanoFramework.Logging\nanoFramework.Logging.nfproj", "{0A60F291-B35A-4BF1-BAB9-CD686AF2EED6}"
+Project("{11A8DD76-328B-46DF-9F39-F559912D0360}") = "nanoFramework.Logging", "nanoFramework.Logging\nanoFramework.Logging.nfproj", "{0A60F291-B35A-4BF1-BAB9-CD686AF2EED6}"
 EndProject
 Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Tests", "Tests", "{D29DC1AA-A2C8-40BA-AAE9-32E9252E81AD}"
 EndProject
-Project("{11A8DD76-328B-46DF-9F39-F559912D0360}") = "UnitTestDebugLogging", ".\Tests\UnitTestDebugLogging\UnitTestDebugLogging.nfproj", "{E7EE659C-D98C-43EA-A71A-45758CBF22A4}"
+Project("{11A8DD76-328B-46DF-9F39-F559912D0360}") = "UnitTestDebugLogging", "Tests\UnitTestDebugLogging\UnitTestDebugLogging.nfproj", "{E7EE659C-D98C-43EA-A71A-45758CBF22A4}"
 EndProject
-Project("{11A8DD76-328B-46DF-9F39-F559912D0360}") = "nanoFramework.Logging.Serial", ".\nanoFramework.Logging.Serial\nanoFramework.Logging.Serial.nfproj", "{6FC962E1-FF13-406D-A8A6-64BB4DE64B67}"
+Project("{11A8DD76-328B-46DF-9F39-F559912D0360}") = "nanoFramework.Logging.Serial", "nanoFramework.Logging.Serial\nanoFramework.Logging.Serial.nfproj", "{6FC962E1-FF13-406D-A8A6-64BB4DE64B67}"
 EndProject
-Project("{11A8DD76-328B-46DF-9F39-F559912D0360}") = "nanoFramework.Logging.Stream", ".\nanoFramework.Logging.Stream\nanoFramework.Logging.Stream.nfproj", "{38F918AD-5A39-4172-B4B4-ECC2A3FA5B4E}"
+Project("{11A8DD76-328B-46DF-9F39-F559912D0360}") = "nanoFramework.Logging.Stream", "nanoFramework.Logging.Stream\nanoFramework.Logging.Stream.nfproj", "{38F918AD-5A39-4172-B4B4-ECC2A3FA5B4E}"
 EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution