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/dCommonTests/CMakeLists.txt

@@ -0,0 +1,19 @@
+set(DCOMMONTEST_SOURCES
+	"AMFDeserializeTests.cpp"
+	"TestLDFFormat.cpp"
+	"TestNiPoint3.cpp"
+	"TestEncoding.cpp"
+)
+
+# Set our executable
+add_executable(dCommonTests ${DCOMMONTEST_SOURCES})
+
+# Link needed libraries
+target_link_libraries(dCommonTests ${COMMON_LIBRARIES} GTest::gtest_main)
+
+# Copy test files to testing directory
+add_subdirectory(TestBitStreams)
+file(COPY ${TESTBITSTREAMS} DESTINATION ${CMAKE_CURRENT_BINARY_DIR})
+
+# Discover the tests
+gtest_discover_tests(dCommonTests)