Add server-side unit tests

Former-commit-id: 1db8c846b260cccaa6dc21590554cca469f5ffce [formerly 08a850f788da4d0d8b7c9ce5517fedf096c592d8] [formerly ae83af3d9153471ab88c285a4dd903e50460e1b2 [formerly e744d24dbc26b54a851c4fff0d166ea702fa1c1d]]
Former-commit-id: 8b0e0287c6a3f6fb456ff5c4a2f397ee3818d1d4 [formerly 35170cc7321b0bf5dcfe4813cd48b82afdb7ac07]
Former-commit-id: 525a0269014feb28795553339ca9d3621a36654a

.travis.yml

@@ -46,4 +46,4 @@ script:
 after_script:
   - export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:../lib/gmake/x64/:../extlibs/lib/gmake/x64/ &&
     cd ../../tests &&
-    ./NazaraUnitTests
+    ./NazaraUnitTestsServer

appveyor.yml

@@ -36,13 +36,11 @@ platform:
 
 build:
   project: build/$(TOOLSET)/NazaraEngine.sln
-  
-#after_build:
-#  - cd tests && "./NazaraUnitTests"
 
 after_build:
   - cd build && "./premake5.exe" package && cd ../package
-  - 7z a NazaraEngine.7z *
+  - 7z a NazaraEngine.7z * && cd ..
+  - cd tests && "./NazaraUnitTestsServer.exe"
 
 artifacts:
   - path: package/NazaraEngine.7z

build/scripts/tools/ndk_server.lua

@@ -38,7 +38,6 @@ TOOL.FilesExcluded = {
 	"../SDK/**/LuaBinding_Renderer.*"
 }
 
-
 TOOL.Libraries = {
 	"NazaraCore",
 	"NazaraLua",

build/scripts/tools/unittests_server.lua

@@ -0,0 +1,34 @@
+TOOL.Name = "UnitTestsServer"
+
+TOOL.Directory = "../tests"
+TOOL.EnableConsole = true
+TOOL.Kind = "Application"
+TOOL.TargetDirectory = TOOL.Directory
+
+TOOL.Defines = {
+	"NDK_SERVER"
+}
+
+TOOL.Includes = {
+	"../include"
+}
+
+TOOL.Files = {
+	"../tests/main.cpp",
+	"../tests/Engine/**.cpp",
+	"../tests/SDK/**.cpp"
+}
+
+-- Excludes client-only files
+TOOL.FilesExcluded = {
+	"../tests/Engine/Audio/**",
+	"../tests/Engine/Graphics/**",
+	"../tests/SDK/NDK/Application.cpp",
+	"../tests/SDK/NDK/Systems/ListenerSystem.cpp",
+	"../tests/SDK/NDK/Systems/RenderSystem.cpp"
+}
+
+TOOL.Libraries = {
+	"NazaraNetwork",
+	"NazaraSDKServer"
+}