Feature/mbedtls (#84)

* try to import mbedtls and build it

* add stubs socket class

* some boilterplate, read and write function implemented

* more boilterplate / current error in handshake because no CA cert is setup

* add something so skip ca verification, can ws curl https://google.com !

* cleanup / close implemented

* tweak CMakefiles

* typo in include

* update readme

* disable unittests

third_party/mbedtls/crypto/scripts/data_files/vs2010-sln-template.sln

@@ -0,0 +1,28 @@
+
+Microsoft Visual Studio Solution File, Format Version 11.00
+# Visual C++ Express 2010
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "mbedTLS", "mbedTLS.vcxproj", "{46CF2D25-6A36-4189-B59C-E4815388E554}"
+EndProject
+APP_ENTRIES
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Win32 = Debug|Win32
+		Debug|x64 = Debug|x64
+		Release|Win32 = Release|Win32
+		Release|x64 = Release|x64
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{46CF2D25-6A36-4189-B59C-E4815388E554}.Debug|Win32.ActiveCfg = Debug|Win32
+		{46CF2D25-6A36-4189-B59C-E4815388E554}.Debug|Win32.Build.0 = Debug|Win32
+		{46CF2D25-6A36-4189-B59C-E4815388E554}.Debug|x64.ActiveCfg = Debug|x64
+		{46CF2D25-6A36-4189-B59C-E4815388E554}.Debug|x64.Build.0 = Debug|x64
+		{46CF2D25-6A36-4189-B59C-E4815388E554}.Release|Win32.ActiveCfg = Release|Win32
+		{46CF2D25-6A36-4189-B59C-E4815388E554}.Release|Win32.Build.0 = Release|Win32
+		{46CF2D25-6A36-4189-B59C-E4815388E554}.Release|x64.ActiveCfg = Release|x64
+		{46CF2D25-6A36-4189-B59C-E4815388E554}.Release|x64.Build.0 = Release|x64
+CONF_ENTRIES
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+EndGlobal