Implement GTest and change windows output path

Implement GTest as a testing infrastructure.
Make windows output binaries to the build folder instead of the release type folder (potentially issue further down the line)
Add a simple unit test for DestroyableComponent

tests/dGameTests/dComponentsTests/CMakeLists.txt

@@ -0,0 +1,10 @@
+set(DCOMPONENTS_TESTS
+	"DestroyableComponentTests.cpp"
+)
+
+# Get the folder name and prepend it to the files above
+get_filename_component(thisFolderName ${CMAKE_CURRENT_SOURCE_DIR} NAME)
+list(TRANSFORM DCOMPONENTS_TESTS PREPEND "${thisFolderName}/")
+
+# Export to parent scope
+set(DCOMPONENTS_TESTS ${DCOMPONENTS_TESTS} PARENT_SCOPE)